CVE-2025-5266 Affecting firefox-debuginfo package, versions <0:128.11.0-1.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.07% (23rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ROCKY8-FIREFOXDEBUGINFO-11328934
  • published30 Jul 2025
  • disclosed27 May 2025

Introduced: 27 May 2025

CVE-2025-5266  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 firefox-debuginfo to version 0:128.11.0-1.el8_10 or higher.
This issue was patched in RLSA-2025:8308.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-debuginfo package and not the firefox-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability affects Firefox < 139, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.

CVSS Base Scores

version 3.1