Prosody is a flexible communications server for Jabber/XMPP written in Lua.
It aims to be easy to use, and light on resources. For developers it aims
to be easy to extend and give a flexible system on which to rapidly develop
added functionality, or prototype new protocols.
Update Information:
Prosody 13.0.5 Upstream is pleased to announce a new minor release from their stable branch. This is a security release for the Prosody 13.0.x stable series. It fixes multiple security issues, some memory leaks and some smaller bugs and changes which have been implemented since the previous release. Full details about the security vulnerabilities can be found in upstream's security advisory. Upstream encourages all Prosody operators on 13.0.4 or earlier to upgrade to 13.0.5 as soon as possible, or to review the advisory and implement appropriate mitigations. A summary of changes in this release: Security mod_proxy65: Consistently apply authorization checks mod_proxy65: Don\u2019t proxy data until after bytestream activation mod_c2s, mod_s2s: Introduce new pre-authentication stanza size limit Add limit for stanza max child elements mod_c2s: Remove timers immediately on disconnection net.server_epoll: Clean up timers after disconnection Fixes and improvements net.http.parser: Fix hand...
* Thu Apr 30 2026 Robert Scheck
[ 1 ] Bug #2464363 - CVE-2026-43507 Prosody: Prosody: Denial of Service via XML parsing resource amplification
https://bugzilla.redhat.com/show_bug.cgi?id=2464363
[ 2 ] Bug #2464412 - CVE-2026-43504 Prosody: mod_proxy65: Prosody: Unauthenticated traffic relay due to access control mishandling in mod_proxy65
https://bugzilla.redhat.com/show_bug.cgi?id=2464412
[ 3 ] Bug #2464452 - CVE-2026-43505 Prosody: mod_proxy65: Prosody: Unauthorized traffic relay via mod_proxy65 access control flaw
https://bugzilla.redhat.com/show_bug.cgi?id=2464452
[ 4 ] Bug #2464492 - CVE-2026-43506 Prosody: Prosody: Denial of Service via memory exhaustion from unauthenticated connections
https://bugzilla.redhat.com/show_bug.cgi?id=2464492
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-36c53b9ca8' 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
Get the latest Linux and open source security news straight to your inbox.