Incorrect Privilege Assignment Affecting firefox package, versions <0:140.14.0-1.el9_8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.32% (26th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOX-19343817
  • published27 Aug 2026
  • disclosed18 Aug 2026

Introduced: 18 Aug 2026

NewCVE-2026-74941  (opens in a new tab)
CWE-266  (opens in a new tab)

How to fix?

Upgrade RHEL:9 firefox to version 0:140.14.0-1.el9_8 or higher.
This issue was patched in RHSA-2026:58897.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

CVSS Base Scores

version 3.1