Vulnerability in GNU Emacs

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• access.redhat.com/errata/RHSA-2026:84591
• access.redhat.com/errata/RHSA-2026:85245
• access.redhat.com/security/cve/CVE-2026-96442
• bugzilla.redhat.com/show_bug.cgi
• github.com/emacs-mirror/emacs/commit/135e6f63f08fee3d374fa1a5187bce941a2d3e3c
• github.com/emacs-mirror/emacs/commit/abc802ee2eb0b1663349ddf22a461f8e54a383fb
• www.openwall.com/lists/oss-security/2026/09/14/1