CVE-2026-8962
Mitigation bypass in the DOM: Security component.
Published May 19, 2026 · updated Jul 23, 2026 · mozilla firefox
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 19, 2026 · NIST NVD
Detected
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Jul 23, 2026 · NIST NVD
Updated
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Affected
- cpe mozilla/firefoxversion unspecified
- cpe mozilla/thunderbirdversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-8962
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-8962
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
nvd.nist.gov