CVE-2026-34933 | THREATINT

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.

PUBLISHED Reserved 2026-03-31 | Published 2026-04-03 | Updated 2026-04-11 | Assigner GitHub_M

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

Problem types

CWE-617: Reachable Assertion

Product status

< 0.9-rc4

affected

References

github.com/.../avahi/security/advisories/GHSA-w65r-6gxh-vhvc exploit

www.openwall.com/lists/oss-security/2026/04/11/9

github.com/.../avahi/security/advisories/GHSA-w65r-6gxh-vhvc

github.com/avahi/avahi/pull/891

github.com/...ommit/625ca0fac19229f6dfa3a6c6b698ae657187e50c

cve.org (CVE-2026-34933)

nvd.nist.gov (CVE-2026-34933)

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