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Gentoo FUSE Security Advisory Highlights Key Vulnerabilities GLSA 202604-03

gentoo
Calendar Grey April 17, 2026
Dist Gentoo Esm H88
Addressing multiple vulnerabilities in FUSE affecting Gentoo Linux, including risks of code execution and DoS. Upgrade recommended.
Multiple vulnerabilities have been found in FUSE, the worst of which can lead to code execution.

Summary

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.

Topics%20covered

Topics Covered

security advisory denial of service Gentoo code execution important FUSE

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
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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.

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Severity: Normal
Title: FUSE: Multiple Vulnerabilities
Date: April 17, 2026
Bugs: #971552
ID: 202604-03

Topics%20covered

Topics Covered

security advisory denial of service Gentoo code execution important FUSE

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.

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Affected Packages

Package Vulnerable Unaffected ----------- ------------ ------------ sys-fs/fuse < 3.18.1 >= 3.18.1

Impact

The following is a possible outcome: denial of service (crash) and potential code execution.

Workaround

There is no known workaround at this time.

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