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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-6763

Mitigation bypass in the File Handling component

Description

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox

  • 140.10 to ≤ 140.*unaffected
  • 150 to ≤ *unaffected

Mozilla Thunderbird

  • 140.10 to ≤ 140.*unaffected
  • 150 to ≤ *unaffected

References