CVE-2026-2796

CVSS v3.1

9.8

Vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148 Thunderbird versions prior to 148

Description A flaw exists in the JavaScript: WebAssembly component due to a JIT miscompilation issue. This can lead to undesirable behavior within the software.

Recommendations Update Firefox to version 148 or later. Update Thunderbird to version 148 or later.

Fix

Type Confusion

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dbugs@ptsecurity.com

Weakness Enumeration

CWE-843

Related Identifiers

CVE-2026-2796

Affected Products

Firefox

Thunderbird

CVE-2026-2796

Weakness Enumeration

Related Identifiers

Affected Products

References · 14