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[gentoo-announce] [ GLSA 202608-21 ] GNU Emacs: Arbitrary code execution

Posted on 24 August 2026
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202608-21
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https://security.gentoo.org/
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Severity: High
Title: GNU Emacs: Arbitrary code execution
Date: August 24, 2026
Bugs: #981157
ID: 202608-21

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Synopsis
========
A vulnerability has been discovered in GNU Emacs allowing arbitrary code
execution.

Background
==========
GNU Emacs is the extensible, customizable, self-documenting real-time
display editor.

Affected packages
=================
Package Vulnerable Unaffected
----------------- ------------- --------------
app-editors/emacs < 27.2-r4:27 >= 27.2-r4:27
< 28.2-r22:28 >= 28.2-r22:28
< 29.4-r10:29 >= 29.4-r10:29
< 30.2-r6:30 >= 30.2-r6:30

Description
===========
A vulnerability has been discovered in GNU Emacs. Please review the CVE
identifier referenced below for details.

Impact
======
An attacker could achieve arbitrary code execution by tricking a user
into opening a file or directory with a malicious filename via TRAMP.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All GNU Emacs users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-editors/emacs-30.2-r6"

References
==========

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202608-21

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2026 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5
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