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
0.3% (24th percentile)

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  • Snyk IDSNYK-RHEL9-FIREFOX-19343819
  • published27 Aug 2026
  • disclosed18 Aug 2026

Introduced: 18 Aug 2026

NewCVE-2026-74942  (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 Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

CVSS Base Scores

version 3.1