CVE-2026-0883 Affecting firefox-debugsource package, versions <0:140.7.0-1.el10_0


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.43% (36th percentile)

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  • Snyk IDSNYK-RHEL10-FIREFOXDEBUGSOURCE-15251590
  • published10 Feb 2026
  • disclosed13 Jan 2026

Introduced: 13 Jan 2026

CVE-2026-0883  (opens in a new tab)

How to fix?

Upgrade RHEL:10 firefox-debugsource to version 0:140.7.0-1.el10_0 or higher.
This issue was patched in RHSA-2026:2271.

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 RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

CVSS Base Scores

version 3.1