RHEL 8 : webkit2gtk3 (RHSA-2026:91636)

critical Nessus Plugin ID 373521

Synopsis

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

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:91636 advisory.

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

Security Fix(es):

* chromium-browser: angle: Use after free in ANGLE (CVE-2026-95325)

* chromium-browser: angle: Out of bounds write in ANGLE (CVE-2026-95331)

* chromium-browser: angle: Out of bounds read in ANGLE (CVE-2026-106304)

* chromium-browser: angle: Buffer overflow in ANGLE (CVE-2026-106247)

* chromium-browser: angle: Type confusion in ANGLE (CVE-2026-106293)

* chromium-browser: angle: Uninitialized resource in ANGLE (CVE-2026-106245)

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-2026:91636.

Plugin Details

Severity: Critical

ID: 373521

File Name: redhat-RHSA-2026-91636.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 10/29/2026

Updated: 10/29/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 92.91

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-2026-95331

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_eus:8.10, 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: 10/28/2026

Vulnerability Publication Date: 9/22/2026

Reference Information

CVE: CVE-2026-106245, CVE-2026-106247, CVE-2026-106293, CVE-2026-106304, CVE-2026-95325, CVE-2026-95331

CWE: 122, 125, 416, 787, 843, 908

RHSA: 2026:91636

Detections

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