CVE record · CVE-2026-96442

Emacs: emacs: arbitrary code execution in flymake mode

CVSS 7.8 HighEPSS 0.0020 · 10th percentile

Published by the CVE Program (CNA: redhat) at 23 Sept 2026, 10:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
GNU Emacs	GNU Emacs Package name: emacs https://git.savannah.gnu.org/cgit/emacs.git/	affected before 31.2 semver Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 10 Package name: emacs https://access.redhat.com/downloads/content/package-browser/	unaffected 1:29.4-14.el10_2.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: emacs https://access.redhat.com/downloads/content/package-browser/	unaffected 1:26.1-15.el8_10.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: emacs https://access.redhat.com/downloads/content/package-browser/	unaffected 1:26.1-15.el8_10.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: emacs https://access.redhat.com/downloads/content/package-browser/	unaffected 1:27.2-18.el9_8.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: emacs https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
Red Hat	Red Hat Enterprise Linux 7 Package name: emacs https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected

Identifiers: CVE-2026-96442
CNA: redhat
Weakness (CWE): CWE-94
Tags: GNU Emacs
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Code injection
Published: 23 Sept 2026
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0020, the 10th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

23 Sept 2026, 10:10 UTC Confirmed by the CVE List
23 Sept 2026, 11:17 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:84591 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:85245 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:90800 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-96442 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2537347 issue-trackingredhat
github.com/emacs-mirror/emacs/commit/135e6f63f08fee3d374fa1a5187bce941a2d3e3c
github.com/emacs-mirror/emacs/commit/abc802ee2eb0b1663349ddf22a461f8e54a383fb
www.openwall.com/lists/oss-security/2026/09/14/1

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.