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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
red hat:red hat enterprise linux 10
red hat:red hat enterprise linux 6
red hat:red hat enterprise linux 8
red hat:red hat enterprise linux 7
red hat:red hat enterprise linux 9
References 5
https://access.redhat.com/security/cve/CVE-2026-96442
NVD
https://bugzilla.redhat.com/show_bug.cgi?id=2537347
RHBZ#2537347
https://github.com/emacs-mirror/emacs/commit/135e6f63f08fee3d374fa1a5187bce941a…
NVD
https://github.com/emacs-mirror/emacs/commit/abc802ee2eb0b1663349ddf22a461f8e54…
NVD
https://www.openwall.com/lists/oss-security/2026/09/14/1
NVD