SUSE-SU-2026:1648-1: moderate: Security update for webkit2gtk3

SLE-UPDATES null at suse.de
Wed Apr 29 08:30:29 UTC 2026 


# Security update for webkit2gtk3

Announcement ID: SUSE-SU-2026:1648-1  
Release Date: 2026-04-28T18:07:02Z  
Rating: moderate  
References:

  * bsc#1261172
  * bsc#1261173
  * bsc#1261174
  * bsc#1261175
  * bsc#1261176
  * bsc#1261177
  * bsc#1261178
  * bsc#1261179

  
Cross-References:

  * CVE-2026-20643
  * CVE-2026-20664
  * CVE-2026-20665
  * CVE-2026-20691
  * CVE-2026-28857
  * CVE-2026-28859
  * CVE-2026-28861
  * CVE-2026-28871

  
CVSS scores:

  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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
  * 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 Products:

  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
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:

  * CVE-2026-20643: processing maliciously crafted web content may bypass Same
    Origin Policy (bsc#1261172).
  * CVE-2026-20664: processing maliciously crafted web content may lead to an
    unexpected process crash (bsc#1261173).
  * CVE-2026-20665: processing maliciously crafted web content may prevent
    Content Security Policy from being enforced (bsc#1261174).
  * CVE-2026-20691: a maliciously crafted webpage may be able to fingerprint the
    user (bsc#1261175).
  * CVE-2026-28857: processing maliciously crafted web content may lead to an
    unexpected process crash (bsc#1261176).
  * CVE-2026-28859: a malicious website may be able to process restricted web
    content outside the sandbox (bsc#1261177).
  * CVE-2026-28861: a malicious website may be able to access script message
    handlers intended for other origins (bsc#1261178).
  * CVE-2026-28871: visiting a maliciously crafted website may lead to a cross-
    site scripting attack (bsc#1261179).

Other updates and bugfixes:

  * Reduce the amount of useless MPRIS notifications produced by MediaSession
    when the information about media being played is incomplete.
  * Support turning off USE_GSTREAMER to configure the build with all multimedia
    features disabled.
  * Add Sysprof marks for mouse events.
  * Fix MediaSession icon for iheart.com not being displayed.
  * Fix the build with USE_GSTREAMER_GL disabled.
  * Fix the build with librice version 0.3.0 or newer.
  * Fix several crashes and rendering issues.
  * 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:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-1648=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * libjavascriptcoregtk-4_0-18-2.52.1-4.57.1
    * webkit2gtk3-debugsource-2.52.1-4.57.1
    * typelib-1_0-WebKit2-4_0-2.52.1-4.57.1
    * typelib-1_0-JavaScriptCore-4_0-2.52.1-4.57.1
    * webkit2gtk3-devel-2.52.1-4.57.1
    * typelib-1_0-WebKit2WebExtension-4_0-2.52.1-4.57.1
    * libjavascriptcoregtk-4_0-18-debuginfo-2.52.1-4.57.1
    * libwebkit2gtk-4_0-37-2.52.1-4.57.1
    * webkit2gtk-4_0-injected-bundles-2.52.1-4.57.1
    * libwebkit2gtk-4_0-37-debuginfo-2.52.1-4.57.1
    * webkit2gtk-4_0-injected-bundles-debuginfo-2.52.1-4.57.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (noarch)
    * libwebkit2gtk3-lang-2.52.1-4.57.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-20643.html
  * https://www.suse.com/security/cve/CVE-2026-20664.html
  * https://www.suse.com/security/cve/CVE-2026-20665.html
  * https://www.suse.com/security/cve/CVE-2026-20691.html
  * https://www.suse.com/security/cve/CVE-2026-28857.html
  * https://www.suse.com/security/cve/CVE-2026-28859.html
  * https://www.suse.com/security/cve/CVE-2026-28861.html
  * https://www.suse.com/security/cve/CVE-2026-28871.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261172
  * https://bugzilla.suse.com/show_bug.cgi?id=1261173
  * https://bugzilla.suse.com/show_bug.cgi?id=1261174
  * https://bugzilla.suse.com/show_bug.cgi?id=1261175
  * https://bugzilla.suse.com/show_bug.cgi?id=1261176
  * https://bugzilla.suse.com/show_bug.cgi?id=1261177
  * https://bugzilla.suse.com/show_bug.cgi?id=1261178
  * https://bugzilla.suse.com/show_bug.cgi?id=1261179

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