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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
GNU Emacs GNU Emacs
Default version status: unaffected
0 to < 31.2affected
Red Hat Red Hat Enterprise Linux 10
Default version status: affected
1:29.4-14.el10_2.3 to < *unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
1:26.1-15.el8_10.4 to < *unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: affected
1:26.1-15.el8_10.4 to < *unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: affected
1:27.2-18.el9_8.3 to < *unaffected
Red Hat Red Hat Enterprise Linux 6
Default version status: unknown
Red Hat Red Hat Enterprise Linux 7
Default version status: affected
References
- https://access.redhat.com/errata/RHSA-2026:84591 ↗
- https://access.redhat.com/errata/RHSA-2026:85245 ↗
- https://access.redhat.com/errata/RHSA-2026:90800 ↗
- https://access.redhat.com/security/cve/CVE-2026-96442 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2537347 ↗
- https://github.com/emacs-mirror/emacs/commit/135e6f63f08fee3d374fa1a5187bce941a2d3e3c ↗
- https://github.com/emacs-mirror/emacs/commit/abc802ee2eb0b1663349ddf22a461f8e54a383fb ↗
- https://www.openwall.com/lists/oss-security/2026/09/14/1 ↗