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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-92074

Mitigation bypass in the Popup Blocker component

Description

Mitigation bypass in the Popup Blocker component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

Affected products

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

Mozilla Firefox

  • 153.3 to ≤ 153.*unaffected
  • 156 to ≤ *unaffected

Mozilla Thunderbird

  • 153.3 to ≤ 153.*unaffected
  • 156 to ≤ *unaffected

References