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Red Hat Security Advisory

RHSA-2026:0019

thunderbird security update

Released 2026-01-05 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 10 records

TI-2025-13085 CVE-2025-14324 · GHSA-c45v-h9vf-q66x

Code injection in Mozilla Firefox

Priority MEDIUM 50

JIT miscompilation in the JavaScript Engine: JIT component.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00565 Published 2025-12-09 Partial fix · 115.31, 140.6 +1 CWE-94
TI-2025-13082 CVE-2025-14321 · GHSA-g2fh-3663-3jf8

Use after free in Mozilla Firefox

Priority MEDIUM 50

Use-after-free in the WebRTC: Signaling component.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00596 Published 2025-12-09 Partial fix · 140.6, 146 CWE-416
TI-2025-13091 CVE-2025-14330 · GHSA-r52p-x88m-mm4j

Memory corruption in Mozilla Firefox

Priority MEDIUM 49

JIT miscompilation in the JavaScript Engine: JIT component.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00506 Published 2025-12-09 Partial fix · 140.6, 146 CWE-119
TI-2025-13086 CVE-2025-14325 · GHSA-364v-7wgj-4r69

Type confusion in Mozilla Firefox

Priority LOW 38

JIT miscompilation in the JavaScript Engine: JIT component.

CVSS 3.1HIGH 7.3 Network No auth No interaction EPSS 0.00342 Published 2025-12-09 Partial fix · 140.6, 146 CWE-843
Priority LOW 37

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component.

CVSS 3.1HIGH 8.0 Network No auth User interaction EPSS 0.00339 Published 2025-12-09 Partial fix · 115.31, 140.6 +1 CWE-754
TI-2025-13092 CVE-2025-14331 · GHSA-pq76-9m6x-m6mx

Origin validation error in Mozilla Firefox

Priority LOW 34

Same-origin policy bypass in the Request Handling component.

CVSS 3.1MEDIUM 6.5 Network No auth No interaction EPSS 0.00187 Published 2025-12-09 Partial fix · 115.31, 140.6 +1 CWE-346