RHEL 9 : webkit2gtk3 (RHSA-2026:95194)

critical Nessus Plugin ID 376160

Synopsis

The remote Red Hat host is missing one or more security updates for webkit2gtk3.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:95194 advisory.

WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

Security Fix(es):

* chromium-browser: skia: chromium-browser: skia: Use after free in Skia (CVE-2026-85049)

* chromium-browser: skia: Skia: Cross-origin data disclosure via use-after-free vulnerability (CVE-2026-91747)

* chromium-browser: skia: Skia in chromium-browser: Information disclosure via improper state validation (CVE-2026-91733)

* chromium-browser: skia: Google Chrome: Cross-origin data disclosure due to uninitialized resource in Skia (CVE-2026-91740)

* chromium-browser: skia: Google Chrome Skia: Cross-origin data disclosure via improper state validation (CVE-2026-93387)

* chromium-browser: skia: chromium-browser: Uninitialized resource in Skia (CVE-2026-102325)

* chromium-browser: skia: Integer overflow in Skia (CVE-2026-103629)

* chromium-browser: skia: Uninitialized resource in Skia (CVE-2026-106379)

* chromium-browser: skia: Out of bounds read in Skia (CVE-2026-106399)

* chromium-browser: skia: Memory corruption in Skia (CVE-2026-113106)

* chromium-browser: skia: Improper input validation in Skia (CVE-2026-118348)

* chromium-browser: skia: Memory corruption in Skia (CVE-2026-118351)

* chromium-browser: skia: Memory corruption in Skia (CVE-2026-118340)

* chromium-browser: skia: Improper input validation in Skia (CVE-2026-118354)

* chromium-browser: skia: Memory corruption in Skia (CVE-2026-118319)

* chromium-browser: skia: Use after free in Skia (CVE-2026-119271)

* chromium-browser: skia: Improper input validation in Skia (CVE-2026-119261)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL webkit2gtk3 package based on the guidance in RHSA-2026:95194.

See Also

https://access.redhat.com/errata/RHSA-2026:95194

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2528197

https://bugzilla.redhat.com/show_bug.cgi?id=2534512

https://bugzilla.redhat.com/show_bug.cgi?id=2534705

https://bugzilla.redhat.com/show_bug.cgi?id=2534759

https://bugzilla.redhat.com/show_bug.cgi?id=2537950

https://bugzilla.redhat.com/show_bug.cgi?id=2543588

https://bugzilla.redhat.com/show_bug.cgi?id=2545277

https://bugzilla.redhat.com/show_bug.cgi?id=2546915

https://bugzilla.redhat.com/show_bug.cgi?id=2547009

https://bugzilla.redhat.com/show_bug.cgi?id=2556522

https://bugzilla.redhat.com/show_bug.cgi?id=2562464

https://bugzilla.redhat.com/show_bug.cgi?id=2562477

https://bugzilla.redhat.com/show_bug.cgi?id=2562479

https://bugzilla.redhat.com/show_bug.cgi?id=2562486

https://bugzilla.redhat.com/show_bug.cgi?id=2562496

https://bugzilla.redhat.com/show_bug.cgi?id=2563744

https://bugzilla.redhat.com/show_bug.cgi?id=2563759

http://www.nessus.org/u?6e962b8c

Plugin Details

Severity: Critical

ID: 376160

File Name: redhat-RHSA-2026-95194.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/4/2026

Updated: 11/4/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 92.83

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-85049

CVSS v3

Risk Factor: Critical

Base Score: 9.6

Temporal Score: 8.3

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

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

CVSS Score Source: CVE-2026-119261

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, cpe:/o:redhat:rhel_eus:9.8, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3-devel, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3-jsc-devel, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3-jsc, p-cpe:/a:redhat:enterprise_linux:webkit2gtk3

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/4/2026

Vulnerability Publication Date: 9/3/2026

Reference Information

CVE: CVE-2026-102325, CVE-2026-103629, CVE-2026-106379, CVE-2026-106399, CVE-2026-113106, CVE-2026-118319, CVE-2026-118340, CVE-2026-118348, CVE-2026-118351, CVE-2026-118354, CVE-2026-119261, CVE-2026-119271, CVE-2026-85049, CVE-2026-91733, CVE-2026-91740, CVE-2026-91747, CVE-2026-93387

CWE: 119, 125, 190, 20, 346, 416, 825, 908

RHSA: 2026:95194