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CVE-2026-0877 The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)

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EPSS
0.44% (37th percentile)

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  • Snyk IDSNYK-ALMALINUX10-THUNDERBIRD-15253352
  • published10 Feb 2026
  • disclosed21 Jan 2026
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Introduced: 21 Jan 2026

CVE-2026-0877  (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.

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

References