Inclusion of Functionality from Untrusted Control Sphere Affecting firefox-debugsource package, versions <0:128.11.0-1.el10_0


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (10th percentile)

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  • Snyk IDSNYK-CENTOS10-FIREFOXDEBUGSOURCE-10297966
  • published4 Jun 2025
  • disclosed27 May 2025

Introduced: 27 May 2025

NewCVE-2025-5266  (opens in a new tab)
CWE-829  (opens in a new tab)

How to fix?

Upgrade Centos:10 firefox-debugsource to version 0:128.11.0-1.el10_0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-debugsource package and not the firefox-debugsource package as distributed by Centos. See How to fix? for Centos:10 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 and Firefox ESR < 128.11.

CVSS Base Scores

version 3.1