CVE-2026-100793

MEDIUMCVSS 6.5

Description

JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

Timeline

Published:September 29th, 2026 1:17 PM

Last modified:October 19th, 2026 3:27 PM

CVSS Scoring

CVSS v3: 6.5 (MEDIUM)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected Software

From NVD CPE configuration data

Vendors

mozilla

Products

firefoxthunderbird

Weaknesses (CWE)

References & Reports

Advisories, patches, and third-party reports

Source: NIST NVD · Data may lag official sources by up to one minute