[ GLSA 202608-04 ] Dnsmasq: Multiple Vulnerabilities

[email protected] Thu, 13 Aug 2026 23:45:00 -0000
Newsgroups	gmane.linux.gentoo.announce
Message-ID	<178666470057.1.3677516254116834808@ea9ff15b5095>
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Gentoo Linux Security Advisory                           GLSA 202608-04
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                                           https://security.gentoo.org/
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 Severity: High
    Title: Dnsmasq: Multiple Vulnerabilities
     Date: August 13, 2026
     Bugs: #974690
       ID: 202608-04

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Synopsis
========

Multiple vulnerabilities have been found in Dnsmasq, one of which
includes remote code execution.

Background
==========

Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP
server.

Affected packages
=================

Package          Vulnerable    Unaffected
---------------  ------------  ------------
net-dns/dnsmasq  < 2.92_p2     >= 2.92_p2

Description
===========

Multiple vulnerabilities have been discovered in Dnsmasq. Please review
the CVE identifiers referenced below for details.

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Dnsmasq users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.92_p2"

References
==========

[ 1 ] CVE-2026-2291
      https://nvd.nist.gov/vuln/detail/CVE-2026-2291
[ 2 ] CVE-2026-4890
      https://nvd.nist.gov/vuln/detail/CVE-2026-4890
[ 3 ] CVE-2026-4891
      https://nvd.nist.gov/vuln/detail/CVE-2026-4891
[ 4 ] CVE-2026-4892
      https://nvd.nist.gov/vuln/detail/CVE-2026-4892
[ 5 ] CVE-2026-4893
      https://nvd.nist.gov/vuln/detail/CVE-2026-4893
[ 6 ] CVE-2026-5172
      https://nvd.nist.gov/vuln/detail/CVE-2026-5172

Availability
============

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

 https://security.gentoo.org/glsa/202608-04

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
[email protected] 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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