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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-2791

Mitigation bypass in the Networking: Cache component

Description

Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Affected products

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

Mozilla Firefox

  • 140.8 to ≤ 140.*unaffected
  • 148 to ≤ *unaffected

Mozilla Thunderbird

  • 140.8 to ≤ 140.*unaffected
  • 148 to ≤ *unaffected

References