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Use After Free The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)

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EPSS
0.48% (39th percentile)

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  • Snyk IDSNYK-ALMALINUX10-THUNDERBIRD-15909796
  • published5 Apr 2026
  • disclosed26 Mar 2026
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Introduced: 26 Mar 2026

CVE-2026-4691  (opens in a new tab)
CWE-416  (opens in a new tab)

Amendment

The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by AlmaLinux.

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

References