SUSE SLES12 Security Update : webkit2gtk3 (SUSE-SU-2026:1648-1)

medium Nessus Plugin ID 311756

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1648-1 advisory.

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.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 311756

File Name: suse_SU-2026-1648-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 5/2/2026

Updated: 5/2/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-28859

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2026-20665

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:typelib-1_0-webkit2-4_0, p-cpe:/a:novell:suse_linux:libjavascriptcoregtk-4_0-18, p-cpe:/a:novell:suse_linux:libwebkit2gtk3-lang, p-cpe:/a:novell:suse_linux:libwebkit2gtk-4_0-37, p-cpe:/a:novell:suse_linux:webkit2gtk3-devel, p-cpe:/a:novell:suse_linux:typelib-1_0-webkit2webextension-4_0, p-cpe:/a:novell:suse_linux:webkit2gtk-4_0-injected-bundles, p-cpe:/a:novell:suse_linux:typelib-1_0-javascriptcore-4_0

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/28/2026

Vulnerability Publication Date: 3/17/2026

Reference Information

CVE: CVE-2026-20643, CVE-2026-20664, CVE-2026-20665, CVE-2026-20691, CVE-2026-28857, CVE-2026-28859, CVE-2026-28861, CVE-2026-28871

SuSE: SUSE-SU-2026:1648-1

Detections

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