CVE-2026-96442: GNU Emacs

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A code execution flaw was found in Emacs, affecting versions prior to 31.2. The Flymake mode using language backends other than Lisp would execute arbitrary code from the edited file while performing syntax checking. Viewing or editing untrusted files using Emacs could lead to arbitrary code execution with the privileges of the user running Emacs.

Affected products

• GNU Emacs GNU Emacs: before 31.2 (fixed in 31.2)
• Red Hat Red Hat Enterprise Linux 10
• Red Hat Red Hat Enterprise Linux 6
• Red Hat Red Hat Enterprise Linux 7
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 9

Published 2026-09-23. Last modified 2026-09-24.