Security update for webkit2gtk3

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