CVE-2026-100820

Description

Privilege escalation in the Address Bar component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

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Produits concernés

• Mozilla Thunderbird
• Mozilla Firefox

Scores CVSS

Faiblesses (CWE)

• CWE-269

Références

• https://bugzilla.mozilla.org/show_bug.cgi?id=2071645 Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2026-100/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-101/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-102/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-103/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-97/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-99/ Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories