Home / mailings [gentoo-announce] [ GLSA 202604-03 ] FUSE: Multiple Vulnerabilities
Posted on 17 April 2026
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Gentoo Linux Security Advisory GLSA 202604-03
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https://security.gentoo.org/
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Severity: Normal
Title: FUSE: Multiple Vulnerabilities
Date: April 17, 2026
Bugs: #971552
ID: 202604-03
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Synopsis
========
Multiple vulnerabilities have been found in FUSE, the worst of which can
lead to code execution.
Background
==========
FUSE (Filesystem in Userspace) is an interface for userspace programs to
export a filesystem to the Linux kernel.
Affected packages
=================
Package Vulnerable Unaffected
----------- ------------ ------------
sys-fs/fuse < 3.18.1 >= 3.18.1
Description
===========
The following vulnerabilities have been discovered in FUSE: a NULL
pointer dereference (when running with the NUMA architecture) and a use-
after-free. The worst of which can lead to code execution. Please review
the CVE identifiers referenced below for details.
Impact
======
The following is a possible outcome: denial of service (crash) and
potential code execution.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All FUSE users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-fs/fuse-3.18.1:3"
References
==========
[ 1 ] CVE-2026-33150
https://nvd.nist.gov/vuln/detail/CVE-2026-33150
[ 2 ] CVE-2026-33179
https://nvd.nist.gov/vuln/detail/CVE-2026-33179
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202604-03
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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