File Descriptor Leak Affecting firefox-debugsource package, versions <0:140.12.0-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-AMZN2023-FIREFOXDEBUGSOURCE-17889083
  • published8 Jul 2026
  • disclosed16 Jun 2026

Introduced: 16 Jun 2026

CVE-2026-12313  (opens in a new tab)
CWE-403  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 firefox-debugsource to version 0:140.12.0-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-1928.

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 Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

CVSS Base Scores

version 3.1