ESB-2026.4833 — Vulnetix

ESB-2026.4833 PUBLISHED CVSS 6.5 MEDIUM

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4833 Security update for webkit2gtk3 8 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: webkit2gtk3 Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2026-20691 CVE-2026-20643 CVE-2026-20665 CVE-2026-28871 CVE-2026-20664 CVE-2026-28857 CVE-2026-28861 CVE-2026-28859 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261749-1 Comment: CVSS (Max): 6.5 CVE-2026-28859 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N EPSS (Max): 0.2% (37th) CVE-2026-20665 2026-05-07 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for webkit2gtk3 Announcement ID: SUSE-SU-2026:1749-1 Release Date: 2026-05-07T10:49:01Z Rating: moderate o bsc#1261172 o bsc#1261173 o bsc#1261174 o bsc#1261175 References: o bsc#1261176 o bsc#1261177 o bsc#1261178 o bsc#1261179 o CVE-2026-20643 o CVE-2026-20664 o CVE-2026-20665 o CVE-2026-20691 Cross-References: o CVE-2026-28857 o CVE-2026-28859 o CVE-2026-28861 o CVE-2026-28871 o CVE-2026-20643 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:U/C:L/I:L/A:N o CVE-2026-20643 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:L/A:N o CVE-2026-20664 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:U/C:N/I:N/A:H o CVE-2026-20664 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:N/I:N/A:L o CVE-2026-20665 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:U/C:L/I:N/A:L o CVE-2026-20665 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:L/I:N/A:L o CVE-2026-20691 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:U/C:L/I:N/A:N o CVE-2026-20691 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:N/A:N CVSS scores: o CVE-2026-28857 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:U/C:N/I:N/A:H o CVE-2026-28857 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:N/I:N/A:H o CVE-2026-28859 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:U/C:H/I:N/A:N o CVE-2026-28859 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:N/A:N o CVE-2026-28861 ( SUSE ): 4.7 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:C/C:L/I:N/A:N o CVE-2026-28861 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:N/A:N o CVE-2026-28871 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R /S:U/C:L/I:N/A:N o CVE-2026-28871 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/ S:U/C:L/I:N/A:N Affected o openSUSE Leap 15.4 Products: An update that solves eight vulnerabilities can now be installed. Description: This update for webkit2gtk3 fixes the following issues: Update to version 2.52.1. Security issues fixed: o CVE-2026-20643: processing maliciously crafted web content may bypass Same Origin Policy (bsc#1261172). o CVE-2026-20664: processing maliciously crafted web content may lead to an unexpected process crash (bsc#1261173). o CVE-2026-20665: processing maliciously crafted web content may prevent Content Security Policy from being enforced (bsc#1261174). o CVE-2026-20691: a maliciously crafted webpage may be able to fingerprint the user (bsc#1261175). o CVE-2026-28857: processing maliciously crafted web content may lead to an unexpected process crash (bsc#1261176). o CVE-2026-28859: a malicious website may be able to process restricted web content outside the sandbox (bsc#1261177). o CVE-2026-28861: a malicious website may be able to access script message handlers intended for other origins (bsc#1261178). o CVE-2026-28871: visiting a maliciously crafted website may lead to a cross-site scripting attack (bsc#1261179). Other updates and bugfixes: o Reduce the amount of useless MPRIS notifications produced by MediaSession when the information about media being played is incomplete. o Support turning off USE_GSTREAMER to configure the build with all multimedia features disabled. o Add Sysprof marks for mouse events. o Fix MediaSession icon for iheart.com not being displayed. o Fix the build with USE_GSTREAMER_GL disabled. o Fix the build with librice version 0.3.0 or newer. o Fix several crashes and rendering issues. o Translation updates: Georgian. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o openSUSE Leap 15.4 zypper in -t patch SUSE-2026-1749=1 Package List: o openSUSE Leap 15.4 (noarch) WebKitGTK-4.1-lang-2.52.1-150400.4.140.2 WebKitGTK-6.0-lang-2.52.1-150400.4.140.2 WebKitGTK-4.0-lang-2.52.1-150400.4.140.2 o openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586) webkit-jsc-4-debuginfo-2.52.1-150400.4.140.2 typelib-1_0-JavaScriptCore-4_0-2.52.1-150400.4.140.2 webkit2gtk4-minibrowser-2.52.1-150400.4.140.2 webkit2gtk-4_0-injected-bundles-2.52.1-150400.4.140.2 libwebkitgtk-6_0-4-debuginfo-2.52.1-150400.4.140.2 webkit2gtk4-debugsource-2.52.1-150400.4.140.2 typelib-1_0-WebKit2-4_0-2.52.1-150400.4.140.2 webkit2gtk4-devel-2.52.1-150400.4.140.2 webkit-jsc-4-2.52.1-150400.4.140.2 webkit2gtk3-soup2-minibrowser-debuginfo-2.52.1-150400.4.140.2 typelib-1_0-JavaScriptCore-6_0-2.52.1-150400.4.140.2 webkit2gtk-4_1-injected-bundles-debuginfo-2.52.1-150400.4.140.2 webkit2gtk3-soup2-minibrowser-2.52.1-150400.4.140.2 typelib-1_0-JavaScriptCore-4_1-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_1-0-2.52.1-150400.4.140.2 libjavascriptcoregtk-6_0-1-2.52.1-150400.4.140.2 webkit2gtk3-devel-2.52.1-150400.4.140.2 typelib-1_0-WebKit2WebExtension-4_1-2.52.1-150400.4.140.2 libwebkit2gtk-4_0-37-debuginfo-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_1-0-debuginfo-2.52.1-150400.4.140.2 libjavascriptcoregtk-6_0-1-debuginfo-2.52.1-150400.4.140.2 webkitgtk-6_0-injected-bundles-debuginfo-2.52.1-150400.4.140.2 webkit-jsc-4.1-debuginfo-2.52.1-150400.4.140.2 webkit-jsc-6.0-debuginfo-2.52.1-150400.4.140.2 webkit2gtk3-soup2-debugsource-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_0-18-2.52.1-150400.4.140.2 libwebkitgtk-6_0-4-2.52.1-150400.4.140.2 libwebkit2gtk-4_1-0-2.52.1-150400.4.140.2 webkit2gtk4-minibrowser-debuginfo-2.52.1-150400.4.140.2 libwebkit2gtk-4_0-37-2.52.1-150400.4.140.2 libwebkit2gtk-4_1-0-debuginfo-2.52.1-150400.4.140.2 webkit2gtk-4_1-injected-bundles-2.52.1-150400.4.140.2 typelib-1_0-WebKit2-4_1-2.52.1-150400.4.140.2 typelib-1_0-WebKit-6_0-2.52.1-150400.4.140.2 typelib-1_0-WebKitWebProcessExtension-6_0-2.52.1-150400.4.140.2 webkitgtk-6_0-injected-bundles-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_0-18-debuginfo-2.52.1-150400.4.140.2 webkit2gtk3-minibrowser-2.52.1-150400.4.140.2 typelib-1_0-WebKit2WebExtension-4_0-2.52.1-150400.4.140.2 webkit2gtk-4_0-injected-bundles-debuginfo-2.52.1-150400.4.140.2 webkit-jsc-4.1-2.52.1-150400.4.140.2 webkit2gtk3-debugsource-2.52.1-150400.4.140.2 webkit2gtk3-minibrowser-debuginfo-2.52.1-150400.4.140.2 webkit2gtk3-soup2-devel-2.52.1-150400.4.140.2 webkit-jsc-6.0-2.52.1-150400.4.140.2 o openSUSE Leap 15.4 (x86_64) libwebkit2gtk-4_0-37-32bit-debuginfo-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_0-18-32bit-debuginfo-2.52.1-150400.4.140.2 libwebkit2gtk-4_1-0-32bit-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_0-18-32bit-2.52.1-150400.4.140.2 libwebkit2gtk-4_1-0-32bit-debuginfo-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_1-0-32bit-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_1-0-32bit-debuginfo-2.52.1-150400.4.140.2 libwebkit2gtk-4_0-37-32bit-2.52.1-150400.4.140.2 o openSUSE Leap 15.4 (aarch64_ilp32) libwebkit2gtk-4_0-37-64bit-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_1-0-64bit-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_0-18-64bit-debuginfo-2.52.1-150400.4.140.2 libwebkit2gtk-4_0-37-64bit-debuginfo-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_0-18-64bit-2.52.1-150400.4.140.2 libjavascriptcoregtk-4_1-0-64bit-debuginfo-2.52.1-150400.4.140.2 libwebkit2gtk-4_1-0-64bit-2.52.1-150400.4.140.2 libwebkit2gtk-4_1-0-64bit-debuginfo-2.52.1-150400.4.140.2 References: o https://www.suse.com/security/cve/CVE-2026-20643.html o https://www.suse.com/security/cve/CVE-2026-20664.html o https://www.suse.com/security/cve/CVE-2026-20665.html o https://www.suse.com/security/cve/CVE-2026-20691.html o https://www.suse.com/security/cve/CVE-2026-28857.html o https://www.suse.com/security/cve/CVE-2026-28859.html o https://www.suse.com/security/cve/CVE-2026-28861.html o https://www.suse.com/security/cve/CVE-2026-28871.html o https://bugzilla.suse.com/show_bug.cgi?id=1261172 o https://bugzilla.suse.com/show_bug.cgi?id=1261173 o https://bugzilla.suse.com/show_bug.cgi?id=1261174 o https://bugzilla.suse.com/show_bug.cgi?id=1261175 o https://bugzilla.suse.com/show_bug.cgi?id=1261176 o https://bugzilla.suse.com/show_bug.cgi?id=1261177 o https://bugzilla.suse.com/show_bug.cgi?id=1261178 o https://bugzilla.suse.com/show_bug.cgi?id=1261179 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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Risk Scores

CVSS v3.1

6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected Products

Vendor	Product	Versions
SUSE	webkit2gtk3

Timeline

May 8, 2026 CVE Published

References

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