CVE-2026-100804

Description

Sandbox escape due to use-after-free in the Preferences: Backend component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

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Produits concernés

• Mozilla Thunderbird
• Mozilla Firefox

Scores CVSS

Faiblesses (CWE)

• CWE-416

Références

• https://bugzilla.mozilla.org/show_bug.cgi?id=2058647 Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2026-101/ Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2026-97/ Vendor Advisory

Ailleurs

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