PT-2026-49685 · Mozilla · Firefox+1

Frederik Braun · Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-12316

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 152 Thunderbird versions prior to 152

Description A mitigation bypass exists within the DOM security component.

Related Identifiers

CVE-2026-12316

Affected Products

Firefox

Thunderbird

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-12316 · Security Note
• https://mozilla.org/security/advisories/mfsa2026-57 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-60 · Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=2045496 · Note