CVE-2026-34933

MediumCVSS 5.5/10Last modified Jul 24, 2026

Description

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-617

Affected software

Vendor	Product	Versions
avahi	avahi	< 0.9-rc4

References

https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50cPatch
https://github.com/avahi/avahi/pull/891Issue Tracking, Patch
https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvcExploit, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/11/9Exploit, Mailing List, Third Party Advisory
https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvcExploit, Patch, Vendor Advisory

Timeline

Published: Apr 3, 2026
Last modified: Jul 24, 2026
NVD status: Analyzed

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