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203
security advisorycriticaluse-after-freeMageia tmux Critical Use After Free Fix CVE-2026-11623 2026-0255
Security update. Publication date: 15 Jul 2026 URL: https://advisories.mageia.org/MGASA-2026-0255.html Type: security Affected Mageia releases: 10, 9 CVE: CVE-2026-11623 Description: The updated package fixes a security vulnerability: tmux image.c image_free use after free. (CVE-2026-11623) References: - https://bugs.mageia.org/show_bug.cgi?id=35707 - https://lists.opensuse.org/archives/list/
Jul 15, 2026
•Critical
Mageia
89
security advisoryfedoraupdateFedora 43 tmux Update 3.7b Security Advisory FEDORA-2026-7fa12630d5
fdf6afc update to 3.7b fixes rhbz#2498485 CHANGES FROM 3.7a TO 3.7b Fix so that the end of a synchronized update again triggers a redraw. CHANGES FROM 3.7 TO 3.7a Fix crash in break-pane when no name is provided.. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-7fa12630d5 2026-07-12 00:58:35.903707+00:00 -------------------------------------------------------------------------------- Name : tmux Product : Fedora 43 Version : 3.7b Release : 3.fc43 URL : https://tmux.github.io/ Summary : A terminal multiplexer Description : tmux is a "terminal multiplexer." It enables a number of terminals (or windows) to be accessed and controlled from a single terminal. tmux is intended to be a simple, modern, BSD-licensed alternative to programs such as GNU Screen. -------------------------------------------------------------------------------- Update Information: fdf6afc update to 3.7b fixes rhbz#2498485 CHANGES FROM 3.7a TO 3.7b Fix so that the end of a synchronized update again triggers a redraw. CHANGES FROM 3.7 TO 3.7a Fix crash in break-pane when no name is provided. Scrollbar options are now cached rather than being looked up for every redraw (issue 5298). Only forbid #( in names, allow #[, empty names, : and . -------------------------------------------------------------------------------- ChangeLog: * Thu Jul 9 2026 Filipe Rosset - 3.7b-3 - RPMAUTOSPEC: unresolvable merge -------------------------------------------------------------------------------- References: [ 1 ] Bug #2487530 - CVE-2026-11623 tmux: tmux: Use-after-free vulnerability [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2487530 [ 2 ] Bug #2498485 - update to 3.7b https://bugzilla.redhat.com/show_bug.cgi?id=2498485 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c'dnf upgrade --advisory FEDORA-2026-7fa12630d5' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
Jul 11, 2026
•Important
Fedora
89
security advisoryfedoraupdateFedora 44 tmux 3.7b Use After Free Bug Advisory 2026-f5dd9fb83f
fdf6afc update to 3.7b fixes rhbz#2498485 CHANGES FROM 3.7a TO 3.7b Fix so that the end of a synchronized update again triggers a redraw. CHANGES FROM 3.7 TO 3.7a Fix crash in break-pane when no name is provided.. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-f5dd9fb83f 2026-07-11 01:06:30.201379+00:00 -------------------------------------------------------------------------------- Name : tmux Product : Fedora 44 Version : 3.7b Release : 2.fc44 URL : https://tmux.github.io/ Summary : A terminal multiplexer Description : tmux is a "terminal multiplexer." It enables a number of terminals (or windows) to be accessed and controlled from a single terminal. tmux is intended to be a simple, modern, BSD-licensed alternative to programs such as GNU Screen. -------------------------------------------------------------------------------- Update Information: fdf6afc update to 3.7b fixes rhbz#2498485 CHANGES FROM 3.7a TO 3.7b Fix so that the end of a synchronized update again triggers a redraw. CHANGES FROM 3.7 TO 3.7a Fix crash in break-pane when no name is provided. Scrollbar options are now cached rather than being looked up for every redraw (issue 5298). Only forbid #( in names, allow #[, empty names, : and . -------------------------------------------------------------------------------- ChangeLog: * Thu Jul 9 2026 Filipe Rosset - 3.7b-2 - fix 3.7b build * Thu Jul 9 2026 Filipe Rosset - 3.7b-1 - update to 3.7b fixes rhbz#2498485 -------------------------------------------------------------------------------- References: [ 1 ] Bug #2487530 - CVE-2026-11623 tmux: tmux: Use-after-free vulnerability [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2487530 [ 2 ] Bug #2498485 - update to 3.7b https://bugzilla.redhat.com/show_bug.cgi?id=2498485 -------------------------------------------------------------------------------- Thisupdate can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-f5dd9fb83f' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
Jul 10, 2026
•Important
Fedora
89
security advisoryfedoraimportantFedora 43 tmux Important Use-After-Free Advisory 2026-5060f8da27
update to 3.7, remove upstreamed patch Upstream ChangeLog: https://raw.githubusercontent.com/tmux/tmux/3.7/CHANGES CHANGES FROM 3.6b TO 3.7 Add floating panes. These are panes which sit above the layout ("tiled panes") like popups but unlike popups are not modal and behave like panes (so the same. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-5060f8da27 2026-07-10 01:05:32.166872+00:00 -------------------------------------------------------------------------------- Name : tmux Product : Fedora 43 Version : 3.7 Release : 3.fc43 URL : https://tmux.github.io/ Summary : A terminal multiplexer Description : tmux is a "terminal multiplexer." It enables a number of terminals (or windows) to be accessed and controlled from a single terminal. tmux is intended to be a simple, modern, BSD-licensed alternative to programs such as GNU Screen. -------------------------------------------------------------------------------- Update Information: update to 3.7, remove upstreamed patch Upstream ChangeLog: https://raw.githubusercontent.com/tmux/tmux/3.7/CHANGES CHANGES FROM 3.6b TO 3.7 Add floating panes. These are panes which sit above the layout ("tiled panes") like popups but unlike popups are not modal and behave like panes (so the same escape sequence support). Floating panes are created with the new-pane command, bound to * by default. This is an early release of this feature and they are relatively limited. Currently floating panes can only be moved and resized using the mouse. The default second status line (if status-format is set to 2) has changed to show a list of panes. Many obvious features are not yet available for floating panes (notably the ability to swap floating panes, resize them using resize-pane, change them between floating and tiles, and restore custom layouts with floating panes). Mostly written by Michael Grant with help from Dane Jensen; testing and fixes fromothers. Allow run-shell arguments after a shell command to be expanded as #{1}, #{2} and so on (from Rasmus Thystrup Karstensen in issue 5121). Add -g to kill-session to kill all sessions in a session group (issue 5157 from github at jiku dot jp). Tighten up read-only checks on attach-session, detach-client and switch-client so that a user should be able to only detach their own client (reported by John Walker). Increase escape delay if the buffer contains a partial paste end, fixes issues with at least Windows Terminal (from jing dot empty at gmail.com issue 5088). When mode-keys is set to vi, do not allow the cursor to go into the invisible extra cell to the right of the visible text; this is closer to what vi(1) does (from Max Vim in issue 5070). Add a five second limit on pasting for terminals which mysteriously lose the end sequence if the paste is too big (that is, Terminal.app) (reported by Garri Djavadyan in issue 4527). Show file open errors more sensibly (reported by Meriel Luna Mittelbach in issue 5081). Update supported features list for Foot terminal (from Meriel Luna Mittelbach in issue 5079). Turn off the "is this a paste" guessing if the terminal supports bracket pasting instead (issue 5031). Check FIONREAD for all panes not just piped panes. Add emacs-style recentre-top-bottom command to copy mode (issue 5053 from sinyax75 at gmail dot com). Allow the indicator in tree mode to be customized by two new options: tree-mode- preview-format and tree-mode-preview-style. Fix control client hang on exit after toggling no-output (issue 5049 from Aaron Campbell). Also various other control mode fixes. Add support for line numbers in copy mode. There is a new copy-mode-line-numbers option which may be set to off, default (tmux's normal line numbering where 0 is the top visible line), absolute (first line in history is 1), relative (relative to the cursor) and hybrid (current line is absolute, others relative). Also adds copy-mode-line-number-style andcopy-mode-current-line-number-style to set the style of the line numbers. When copy mode is entered with the mouse, line numbers stay off. From Leo Henon in issue 5025. Make C-[ have the same bindings as Escape for terminals with extended keys where they are different (issue 5035 from Eric Nicolas). Sanitize paste buffer names in paste_set and paste_rename (issue 5032 from Barrett Ruth). Do not hang in run-shell when job_run fails (from Barrett Ruth in issue 5037). Add ability to forward progress bar to outside terminal (issue 4972 from Eric Dorland). Translate keypad keys to text in prompt input (from Barrett Ruth in issue 4996). Sanitize pane titles and window and session names more consistently and strictly, prevents C0 characters and other invisible characters causing problems (reported by Chris Monardo in issue 4999). Make clock visible on terminals without colours (from Manuel Einfalt in issue 5001). Add detach to default session menu (suggested by Przemyslaw Sztoch). Include window format variables for pane notifications (issue 5007 from Saul Nogueras). Limit precision to 100 for formats to stop silly formats from running out of memory, reported by z1281552865 at gmail dot com. Also various other similar changes, mostly found by OSS-Fuzz. Add WAYLAND_DISPLAY to default update-environment (issue 4965). Also some additional XDG_* variables (issue 5169). Add -C flag to command-prompt to match display-message -C (do not freeze panes) (from Barrett Ruth in issue 4978). Cache user from getpwuid because it can be very expensive on some platforms (from Ben Maurer in issue 4973). Add remain-on-exit key to keep pane around until a key is pressed (from Michael Grant). Add some new mouse ranges called "control0" to "control9" and use to add some mouse controls to the pane state line (from Dane Jensen with some bits from Michael Grant). Handle OSC 9;4 progress bar sequence and store in format variables (from Eric Dorland in issue 4954). Correctly size buffer used for parsingclipboard sequences (from Michal Majchrowicz). Limit MSG_COMMAND argument to between 0 and 1000 to prevent a misbehaving client from crashing the server (from Michal Majchrowicz). Reorganize host keys are represented internally so they can be built more easily (from Dane Jensen in issue 4953). Add new fuzzers for command parsing, formats and styles (from David Korczynski in issue 4957). Also fix various issues shown from these. Add bracket_paste_flag format flag (from George Nachman in issue 4951). Use - for hyphens in tmux.1 to cause newer groff versions to render them correctly (from Keith Thompson in issue 4948). Various minor code improvements and fixes from Pavel Lavrukhin (issue 4936 and others). Use window options for cursor-style to avoid crash when no pane (from Arden Packeer in issue 4942). Fix issue where popup window gets overwritten by background updates (from Conor Taylor in issue 4920). Protect against overflow when scrollbar is off screen (from san65384 at gmail dot com in issue 4933). Copy hyperlinks when redrawing popup so they do not vanish (from Antoine Gaudreau Simard in issue 4925). Work around systemd killing panes early during system shutdown by creating dependencies from the panes to the service which started tmux (issue 4926 from Dmitry Torokhov). Allow codepoint-widths to accept ranges (from san65384 at gmail dot com in issue 4930). Add a short builtin help text for each mode accessible with C-h (based on code from Patrick Motard in issue 4751). Draw message as one format, allowing prompts and messages to occupy only a portion of the status bar, overlaying the normal status content rather than replacing the entire line. A new message-format option now controls the entire message (like status-format). The message-style option now need to include "fill" in order to cover the whole width (the default has "fill=yellow"). From Conor Taylor in issue 4861. Add next/previous variables for windows in W: loop (from Conor Taylor in issue 4856). Various bug andmemory leak fixes from Renaud Allard (issue 4916). Add pane_pipe_pid with pipe file descriptor. Make -c work with new-session -A (from Jody Frankowski in issue 4906). Allow copy mode to work for readonly clients, except for copy commands (from Dane Jensen). Pass paste buffer through vis(3) when pasting to prevent buffers containing for example the bracket end sequence causing issues, a new -S flag disables (reported by Mason Davis). Add sorting (-O flag) and a custom format (-F) to list-keys (from Dane Jensen in issue 4845). Add scroll-exit-on, scroll-exit-off, scroll-exit-toggle commands to copy mode (from xcdnlgd at hotmail dot com in issue 4884). Respond to DECRQM 2026 (from David Turnbull in issue 4887) and various others (from Ayman Bagabas in issue 5118). Fix various memory leaks reported by Huihui Huang (issue 4872). Pass which clipboard is set through to the terminal (from Axel Lindskog in issue 4858). Reuse extended entry when clearing RGB cell, to prevent memory growth when cells are repeatedly cleared (from Michael K Darling in issue 4862). Do not write before buffer when parsing empty clipboard or palette replies, or try to allocate zero bytes with an empty clipboard sequence (reported by DongHan Kim). Various bug fixes and code improvements from Conor Taylor (issue 4848). Clear search counts when clearing marks in case of repeated search (reported by Daniel Pereira in issue 4817). Make OSC 52 work in popups (from gogongxt at 163 dot com in issue 4797). Refresh copy mode when style changes (from Josh Cooper in issue 4830). Make sorting code common and add -O for sorting to the list commands (from Dane Jensen in issue 4813). Do not treat cells as empty unless the background colour stays the same, fixes invisible clock in clock mode (reported by Theo Buehler). When history-limit is changed, apply to existing panes, not just new ones (issue 4705). Reevaluate menu and popup styles on each draw to allow them to change when options change (from Josh Cooper in issues 4828and 4829). Handle theme keys earlier so they are processed even if a popup is open (from Josh Cooper in issue 4827). Fix window-size=latest not resizing on switch-client in session groups (from Ilya Grigoriev in issue 4818). Add -e flag to command-prompt to close if empty (from Dane Jensen in issue 4812). Correctly draw indicators when pane-border-indicators is set to both (reported by Ilya Grigoriev in issue 4780). Remember last pane or type of location for double and triple clicks and correctly handle it changes between first and second or second and third (issue 47 -------------------------------------------------------------------------------- ChangeLog: * Sun Jun 28 2026 Filipe Rosset - 3.7-3 - RPMAUTOSPEC: unresolvable merge -------------------------------------------------------------------------------- References: [ 1 ] Bug #2487530 - CVE-2026-11623 tmux: tmux: Use-after-free vulnerability [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2487530 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-5060f8da27' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
Jul 09, 2026
•Important
Fedora
89
security advisoryfedoracriticalFedora 44 tmux Severe Use-After-Free Resolution FEDORA-2026-20eaa64d75
update to 3.7, remove upstreamed patch Upstream ChangeLog: https://raw.githubusercontent.com/tmux/tmux/3.7/CHANGES CHANGES FROM 3.6b TO 3.7 Add floating panes. These are panes which sit above the layout ("tiled panes") like popups but unlike popups are not modal and behave like panes (so the same. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2026-20eaa64d75 2026-07-10 00:52:14.826297+00:00 -------------------------------------------------------------------------------- Name : tmux Product : Fedora 44 Version : 3.7 Release : 2.fc44 URL : https://tmux.github.io/ Summary : A terminal multiplexer Description : tmux is a "terminal multiplexer." It enables a number of terminals (or windows) to be accessed and controlled from a single terminal. tmux is intended to be a simple, modern, BSD-licensed alternative to programs such as GNU Screen. -------------------------------------------------------------------------------- Update Information: update to 3.7, remove upstreamed patch Upstream ChangeLog: https://raw.githubusercontent.com/tmux/tmux/3.7/CHANGES CHANGES FROM 3.6b TO 3.7 Add floating panes. These are panes which sit above the layout ("tiled panes") like popups but unlike popups are not modal and behave like panes (so the same escape sequence support). Floating panes are created with the new-pane command, bound to * by default. This is an early release of this feature and they are relatively limited. Currently floating panes can only be moved and resized using the mouse. The default second status line (if status-format is set to 2) has changed to show a list of panes. Many obvious features are not yet available for floating panes (notably the ability to swap floating panes, resize them using resize-pane, change them between floating and tiles, and restore custom layouts with floating panes). Mostly written by Michael Grant with help from Dane Jensen; testing and fixes fromothers. Allow run-shell arguments after a shell command to be expanded as #{1}, #{2} and so on (from Rasmus Thystrup Karstensen in issue 5121). Add -g to kill-session to kill all sessions in a session group (issue 5157 from github at jiku dot jp). Tighten up read-only checks on attach-session, detach-client and switch-client so that a user should be able to only detach their own client (reported by John Walker). Increase escape delay if the buffer contains a partial paste end, fixes issues with at least Windows Terminal (from jing dot empty at gmail.com issue 5088). When mode-keys is set to vi, do not allow the cursor to go into the invisible extra cell to the right of the visible text; this is closer to what vi(1) does (from Max Vim in issue 5070). Add a five second limit on pasting for terminals which mysteriously lose the end sequence if the paste is too big (that is, Terminal.app) (reported by Garri Djavadyan in issue 4527). Show file open errors more sensibly (reported by Meriel Luna Mittelbach in issue 5081). Update supported features list for Foot terminal (from Meriel Luna Mittelbach in issue 5079). Turn off the "is this a paste" guessing if the terminal supports bracket pasting instead (issue 5031). Check FIONREAD for all panes not just piped panes. Add emacs-style recentre-top-bottom command to copy mode (issue 5053 from sinyax75 at gmail dot com). Allow the indicator in tree mode to be customized by two new options: tree-mode- preview-format and tree-mode-preview-style. Fix control client hang on exit after toggling no-output (issue 5049 from Aaron Campbell). Also various other control mode fixes. Add support for line numbers in copy mode. There is a new copy-mode-line-numbers option which may be set to off, default (tmux's normal line numbering where 0 is the top visible line), absolute (first line in history is 1), relative (relative to the cursor) and hybrid (current line is absolute, others relative). Also adds copy-mode-line-number-style andcopy-mode-current-line-number-style to set the style of the line numbers. When copy mode is entered with the mouse, line numbers stay off. From Leo Henon in issue 5025. Make C-[ have the same bindings as Escape for terminals with extended keys where they are different (issue 5035 from Eric Nicolas). Sanitize paste buffer names in paste_set and paste_rename (issue 5032 from Barrett Ruth). Do not hang in run-shell when job_run fails (from Barrett Ruth in issue 5037). Add ability to forward progress bar to outside terminal (issue 4972 from Eric Dorland). Translate keypad keys to text in prompt input (from Barrett Ruth in issue 4996). Sanitize pane titles and window and session names more consistently and strictly, prevents C0 characters and other invisible characters causing problems (reported by Chris Monardo in issue 4999). Make clock visible on terminals without colours (from Manuel Einfalt in issue 5001). Add detach to default session menu (suggested by Przemyslaw Sztoch). Include window format variables for pane notifications (issue 5007 from Saul Nogueras). Limit precision to 100 for formats to stop silly formats from running out of memory, reported by z1281552865 at gmail dot com. Also various other similar changes, mostly found by OSS-Fuzz. Add WAYLAND_DISPLAY to default update-environment (issue 4965). Also some additional XDG_* variables (issue 5169). Add -C flag to command-prompt to match display-message -C (do not freeze panes) (from Barrett Ruth in issue 4978). Cache user from getpwuid because it can be very expensive on some platforms (from Ben Maurer in issue 4973). Add remain-on-exit key to keep pane around until a key is pressed (from Michael Grant). Add some new mouse ranges called "control0" to "control9" and use to add some mouse controls to the pane state line (from Dane Jensen with some bits from Michael Grant). Handle OSC 9;4 progress bar sequence and store in format variables (from Eric Dorland in issue 4954). Correctly size buffer used for parsingclipboard sequences (from Michal Majchrowicz). Limit MSG_COMMAND argument to between 0 and 1000 to prevent a misbehaving client from crashing the server (from Michal Majchrowicz). Reorganize host keys are represented internally so they can be built more easily (from Dane Jensen in issue 4953). Add new fuzzers for command parsing, formats and styles (from David Korczynski in issue 4957). Also fix various issues shown from these. Add bracket_paste_flag format flag (from George Nachman in issue 4951). Use - for hyphens in tmux.1 to cause newer groff versions to render them correctly (from Keith Thompson in issue 4948). Various minor code improvements and fixes from Pavel Lavrukhin (issue 4936 and others). Use window options for cursor-style to avoid crash when no pane (from Arden Packeer in issue 4942). Fix issue where popup window gets overwritten by background updates (from Conor Taylor in issue 4920). Protect against overflow when scrollbar is off screen (from san65384 at gmail dot com in issue 4933). Copy hyperlinks when redrawing popup so they do not vanish (from Antoine Gaudreau Simard in issue 4925). Work around systemd killing panes early during system shutdown by creating dependencies from the panes to the service which started tmux (issue 4926 from Dmitry Torokhov). Allow codepoint-widths to accept ranges (from san65384 at gmail dot com in issue 4930). Add a short builtin help text for each mode accessible with C-h (based on code from Patrick Motard in issue 4751). Draw message as one format, allowing prompts and messages to occupy only a portion of the status bar, overlaying the normal status content rather than replacing the entire line. A new message-format option now controls the entire message (like status-format). The message-style option now need to include "fill" in order to cover the whole width (the default has "fill=yellow"). From Conor Taylor in issue 4861. Add next/previous variables for windows in W: loop (from Conor Taylor in issue 4856). Various bug andmemory leak fixes from Renaud Allard (issue 4916). Add pane_pipe_pid with pipe file descriptor. Make -c work with new-session -A (from Jody Frankowski in issue 4906). Allow copy mode to work for readonly clients, except for copy commands (from Dane Jensen). Pass paste buffer through vis(3) when pasting to prevent buffers containing for example the bracket end sequence causing issues, a new -S flag disables (reported by Mason Davis). Add sorting (-O flag) and a custom format (-F) to list-keys (from Dane Jensen in issue 4845). Add scroll-exit-on, scroll-exit-off, scroll-exit-toggle commands to copy mode (from xcdnlgd at hotmail dot com in issue 4884). Respond to DECRQM 2026 (from David Turnbull in issue 4887) and various others (from Ayman Bagabas in issue 5118). Fix various memory leaks reported by Huihui Huang (issue 4872). Pass which clipboard is set through to the terminal (from Axel Lindskog in issue 4858). Reuse extended entry when clearing RGB cell, to prevent memory growth when cells are repeatedly cleared (from Michael K Darling in issue 4862). Do not write before buffer when parsing empty clipboard or palette replies, or try to allocate zero bytes with an empty clipboard sequence (reported by DongHan Kim). Various bug fixes and code improvements from Conor Taylor (issue 4848). Clear search counts when clearing marks in case of repeated search (reported by Daniel Pereira in issue 4817). Make OSC 52 work in popups (from gogongxt at 163 dot com in issue 4797). Refresh copy mode when style changes (from Josh Cooper in issue 4830). Make sorting code common and add -O for sorting to the list commands (from Dane Jensen in issue 4813). Do not treat cells as empty unless the background colour stays the same, fixes invisible clock in clock mode (reported by Theo Buehler). When history-limit is changed, apply to existing panes, not just new ones (issue 4705). Reevaluate menu and popup styles on each draw to allow them to change when options change (from Josh Cooper in issues 4828and 4829). Handle theme keys earlier so they are processed even if a popup is open (from Josh Cooper in issue 4827). Fix window-size=latest not resizing on switch-client in session groups (from Ilya Grigoriev in issue 4818). Add -e flag to command-prompt to close if empty (from Dane Jensen in issue 4812). Correctly draw indicators when pane-border-indicators is set to both (reported by Ilya Grigoriev in issue 4780). Remember last pane or type of location for double and triple clicks and correctly handle it changes between first and second or second and third (issue 47 -------------------------------------------------------------------------------- ChangeLog: * Sun Jun 28 2026 Filipe Rosset - 3.7-2 - remove systemd tmux.service commands * Sun Jun 28 2026 Filipe Rosset - 3.7-1 - update to 3.7, remove upstreamed patch, handle tmux@service * Sun Jun 21 2026 Filipe Rosset - 3.6b-5 - opt-in to packit for rawhide [skip changelog] * Sun Jun 21 2026 Filipe Rosset - 3.6b-4 - simplify .gitignore file [skip changelog] * Sat Jun 20 2026 Filipe Rosset - 3.6b-2 - spec cleanup and modernization in preparation for next release -------------------------------------------------------------------------------- References: [ 1 ] Bug #2487530 - CVE-2026-11623 tmux: tmux: Use-after-free vulnerability [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2487530 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-20eaa64d75' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
Jul 09, 2026
•Critical
Fedora
172
security advisorydenial of servicecriticalUbuntu 26.04 tmux Critical Denial of Service USN-8428-1 CVE-2026-11623
tmux could be made to crash if it received specially crafted input.. ========================================================================== Ubuntu Security Notice USN-8428-1 June 15, 2026 tmux vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS Summary: tmux could be made to crash if it received specially crafted input. Software Description: - tmux: terminal multiplexer Details: It was discovered that tmux incorrectly handled image cleanup, leading to a use-after-free vulnerability. A local attacker could possibly use this issue to cause tmux to crash, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS tmux 3.6a-2ubuntu0.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8428-1 CVE-2026-11623 Package Information: https://launchpad.net/ubuntu/+source/tmux/3.6a-2ubuntu0.1 . tmux crashes due to crafted input, leading to potential Denial of Service. Update to Ubuntu 26.04 LTS versions to fix.. tmux security bug, Ubuntu update, software crash fix. . Severity: Critical. LinuxSecurity.com Team
Jun 15, 2026
•Critical
Ubuntu
202
security advisorymoderatesystem accessopenSUSE Tumbleweed tmux Moderate Access Issue CVE-2026-11623
An update that solves one vulnerability can now be installed.. # tmux-3.6b-2.1 on GA media Announcement ID: openSUSE-SU-2026:11006-1 Rating: moderate Cross-References: * CVE-2026-11623 CVSS scores: * CVE-2026-11623 ( SUSE ): 5.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H * CVE-2026-11623 ( SUSE ): 5.8 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N Affected Products: * openSUSE Tumbleweed An update that solves one vulnerability can now be installed. ## Description: These are all security issues fixed in the tmux-3.6b-2.1 package on the GA media of openSUSE Tumbleweed. ## Package List: * openSUSE Tumbleweed: * tmux 3.6b-2.1 ## References: * https://www.suse.com/security/cve/CVE-2026-11623.html . Update available for openSUSE tmux to address a moderate severity issue affecting system integrity and availability.. openSUSE tmux security update, tmux vulnerability fix, openSUSE moderate security alert. . Severity: Important. LinuxSecurity.com Team
Jun 13, 2026
•Important
OpenSUSE
91
security advisorydenial of servicegentooGentoo: GLSA 202409-27 normal: tmux null pointer dereference issue
A vulnerability has been found in tmux which could result in application crash.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202409-27 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: tmux: Null Pointer Dereference Date: September 28, 2024 Bugs: #891783 ID: 202409-27 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability has been found in tmux which could result in application crash. Background ========== tmux is a terminal multiplexer. Affected packages ================= Package Vulnerable Unaffected ------------- ------------ ------------ app-misc/tmux < 3.4 > = 3.4 Description =========== A null pointer dereference issue was discovered in function window_pane_set_event in window.c in which allows attackers to cause denial of service or other unspecified impacts. Impact ====== Manipulating tmux window state could result in a null pointer dereference. Workaround ========== There is no known workaround at this time. Resolution ========== All tmux users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =app-misc/tmux-3.4" References ========== [ 1 ] CVE-2022-47016 https://nvd.nist.gov/vuln/detail/CVE-2022-47016 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202409-27 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to
Sep 28, 2024
Gentoo
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