CVE-2026-8970 Affecting firefox-x11 package, versions <0:140.11.0-1.el9_8.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-ALMALINUX9-FIREFOXX11-17098177
  • published30 May 2026
  • disclosed27 May 2026

Introduced: 27 May 2026

NewCVE-2026-8970  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 firefox-x11 to version 0:140.11.0-1.el9_8.alma.1 or higher.
This issue was patched in ALSA-2026:21378.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-x11 package and not the firefox-x11 package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVSS Base Scores

version 3.1