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openSUSE webkit2gtk3 Important Update Security Advisory 2026-21129-1

An update that solves 16 vulnerabilities and has 16 bug fixes can now be installed.. openSUSE security update: security update for webkit2gtk3 ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21129-1 Rating: important References: * bsc#1267506 * bsc#1267507 * bsc#1267508 * bsc#1267509 * bsc#1267510 * bsc#1267511 * bsc#1267512 * bsc#1267513 * bsc#1267514 * bsc#1267515 * bsc#1267516 * bsc#1267517 * bsc#1267518 * bsc#1267519 * bsc#1267520 * bsc#1267521 Cross-References: * CVE-2026-28847 * CVE-2026-28883 * CVE-2026-28901 * CVE-2026-28902 * CVE-2026-28903 * CVE-2026-28904 * CVE-2026-28905 * CVE-2026-28907 * CVE-2026-28942 * CVE-2026-28946 * CVE-2026-28947 * CVE-2026-28953 * CVE-2026-28955 * CVE-2026-28958 * CVE-2026-43658 * CVE-2026-43660 CVSS scores: * CVE-2026-28847 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H * CVE-2026-28847 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-28883 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H * CVE-2026-28883 ( SUSE ): 7.7 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-28901 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H * CVE-2026-28901 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-28902 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H * CVE-2026-28902 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-28903 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H * CVE-2026-28903 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-28904 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H * CVE-2026-28904 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-28905 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H * CVE-2026-28905 ( SUSE ): 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-28907 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N * CVE-2026-28907 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N * CVE-2026-28942 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H * CVE-2026-28942 ( SUSE ): 7.7 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-28946 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H * CVE-2026-28946 ( SUSE ): 7.7 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-28947 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H * CVE-2026-28947 ( SUSE ): 7.7 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-28953 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H * CVE-2026-28953 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-28955 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H * CVE-2026-28955 ( SUSE ): 7.7 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-28958 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N * CVE-2026-28958 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N * CVE-2026-43658 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H * CVE-2026-43658 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2026-43660 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N * CVE-2026-43660 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N Affected Products: openSUSE Leap 16.0 ------------------------------------------------------------- An update that solves 16 vulnerabilities and has 16 bug fixes can now be installed. Description: This update for webkit2gtk3 fixes the following issues Update to version 2.52.4: - CVE-2026-28847: processing maliciously crafted web content may lead to an unexpected process crash or arbitrarycode execution due to a heap buffer overflow (bsc#1267506). - CVE-2026-28883: processing maliciously crafted web content may lead to an unexpected process crash due to a use-after- free issue (bsc#1267507). - CVE-2026-28901: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267508). - CVE-2026-28902: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267509). - CVE-2026-28903: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267510). - CVE-2026-28904: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267511). - CVE-2026-28905: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267512). - CVE-2026-28907: processing maliciously crafted web content may prevent Content Security Policy from being enforced due to improper input validation (bsc#1267513). - CVE-2026-28942: processing maliciously crafted web content may lead to an unexpected crash due to use-after-free (bsc#1267514). - CVE-2026-28946: processing maliciously crafted web content may lead to an unexpected crash due to a use-after-free (bsc#1267515). - CVE-2026-28947: rocessing maliciously crafted web content may lead to an unexpected crash due to a use-after-free (bsc#1267516). - CVE-2026-28953: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267517). - CVE-2026-28955: processing maliciously crafted web content may lead to an unexpected process crash due to improper memory handling (bsc#1267518). - CVE-2026-28958: an app may be able to access sensitive user data due to improper data protection (bsc#1267519). - CVE-2026-43658: processing maliciously crafted web content may lead to an unexpected crash due toimproper memory handling (bsc#1267520). - CVE-2026-43660: processing maliciously crafted web content may prevent Content Security Policy from being enforced due to issues with logic (bsc#1267521). Changes for webkit2gtk3: + Add support for half-width fonts. + Improve content filter compilation by avoiding file copies. + Improve handling of out of disk space conditions when the NetworkProcess tried to write data in caches. + Improve how the CMake build system checks whether libatomic is required. + Fix painting scrollbars when their width changes. + Fix playback of certain YouTube videos with low frame rates. + Fix webkit://gpu not working in systems where neither libGL.so.1 nor libOpenGL.so.0 are available. + Fix the build with librice 0.4 or newer when the GStreamer WebRTC backend is enabled at build configuration time. + Fix the build with USE_GSTREAMER_WEBRTC=OFF. + Fix the build with USE_GBM=OFF. + Fix several crashes and rendering issues. + Security fixes: CVE-2026-28847, CVE-2026-28883, CVE-2026-28901, CVE-2026-28902, CVE-2026-28903, CVE-2026-28904, CVE-2026-28905, CVE-2026-28907, CVE-2026-28942, CVE-2026-28946, CVE-2026-28947, CVE-2026-28953, CVE-2026-28955, CVE-2026-28958, CVE-2026-43658, CVe-2026-43660. + Changes in version .52.3; + Add support for the "scrollbar-color" CSS property. + Fix some emoji glyphs being rendered as missing glyph boxes. + Fix JavaScriptCore crashes on architectures other than x86_64. + Fix the build on s390x. + Changes in version 2.52.2: + Improve handling of real-time threads. + Fix scrollbar rendering glitches visible in some GPU configurations. + Fix V4L2 hardware accelerated media codecs now working due to overly restrictive sandbox device access rules. + Fix leak of bitmap images in webkit_favicon_database_get_favicon_finish(). + Fix the build with USE_GTK4=OFF. Patch instructions: To install this openSUSE security update use the suse recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - openSUSE Leap 16.0 zypper in -t patch openSUSE-Leap-16.0-994=1 Package List: - openSUSE Leap 16.0: WebKitGTK-4.0-lang-2.52.4-160000.1.1 WebKitGTK-4.1-lang-2.52.4-160000.1.1 WebKitGTK-6.0-lang-2.52.4-160000.1.1 libjavascriptcoregtk-4_0-18-2.52.4-160000.1.1 libjavascriptcoregtk-4_1-0-2.52.4-160000.1.1 libjavascriptcoregtk-6_0-1-2.52.4-160000.1.1 libwebkit2gtk-4_0-37-2.52.4-160000.1.1 libwebkit2gtk-4_1-0-2.52.4-160000.1.1 libwebkitgtk-6_0-4-2.52.4-160000.1.1 typelib-1_0-JavaScriptCore-4_0-2.52.4-160000.1.1 typelib-1_0-JavaScriptCore-4_1-2.52.4-160000.1.1 typelib-1_0-JavaScriptCore-6_0-2.52.4-160000.1.1 typelib-1_0-WebKit-6_0-2.52.4-160000.1.1 typelib-1_0-WebKit2-4_0-2.52.4-160000.1.1 typelib-1_0-WebKit2-4_1-2.52.4-160000.1.1 typelib-1_0-WebKit2WebExtension-4_0-2.52.4-160000.1.1 typelib-1_0-WebKit2WebExtension-4_1-2.52.4-160000.1.1 typelib-1_0-WebKitWebProcessExtension-6_0-2.52.4-160000.1.1 webkit-jsc-4-2.52.4-160000.1.1 webkit-jsc-4.1-2.52.4-160000.1.1 webkit-jsc-6.0-2.52.4-160000.1.1 webkit2gtk-4_0-injected-bundles-2.52.4-160000.1.1 webkit2gtk-4_1-injected-bundles-2.52.4-160000.1.1 webkit2gtk3-devel-2.52.4-160000.1.1 webkit2gtk3-minibrowser-2.52.4-160000.1.1 webkit2gtk3-soup2-devel-2.52.4-160000.1.1 webkit2gtk3-soup2-minibrowser-2.52.4-160000.1.1 webkit2gtk4-devel-2.52.4-160000.1.1 webkit2gtk4-minibrowser-2.52.4-160000.1.1 webkitgtk-6_0-injected-bundles-2.52.4-160000.1.1 References: * https://www.suse.com/security/cve/CVE-2026-28847.html * https://www.suse.com/security/cve/CVE-2026-28883.html * https://www.suse.com/security/cve/CVE-2026-28901.html * https://www.suse.com/security/cve/CVE-2026-28902.html * https://www.suse.com/security/cve/CVE-2026-28903.html * https://www.suse.com/security/cve/CVE-2026-28904.html * https://www.suse.com/security/cve/CVE-2026-28905.html * https://www.suse.com/security/cve/CVE-2026-28907.html *https://www.suse.com/security/cve/CVE-2026-28942.html * https://www.suse.com/security/cve/CVE-2026-28946.html * https://www.suse.com/security/cve/CVE-2026-28947.html * https://www.suse.com/security/cve/CVE-2026-28953.html * https://www.suse.com/security/cve/CVE-2026-28955.html * https://www.suse.com/security/cve/CVE-2026-28958.html * https://www.suse.com/security/cve/CVE-2026-43658.html * https://www.suse.com/security/cve/CVE-2026-43660.html . Critical openSUSE update resolving 16 issues in webkit2gtk3; essential fixes for improved security and performance.. openSUSE update, webkit2gtk3 fix, important security issues, memory handling fix. . Severity: Important. LinuxSecurity.com Team

Jun 30, 2026 •Important OpenSUSE