{"id":"CVE-2026-34933","summary":"Avahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon","details":"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.","aliases":["GHSA-w65r-6gxh-vhvc"],"modified":"2026-07-15T01:49:21.684833758Z","published":"2026-04-03T22:43:26.683Z","related":["CGA-46f4-pjfv-59pq","SUSE-SU-2026:21417-1","SUSE-SU-2026:21631-1","SUSE-SU-2026:22258-1","SUSE-SU-2026:22338-1","SUSE-SU-2026:2296-1","SUSE-SU-2026:2297-1","SUSE-SU-2026:2311-1","openSUSE-SU-2026:10670-1","openSUSE-SU-2026:21014-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34933.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-617"]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/04/11/9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34933.json"},{"type":"ADVISORY","url":"https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34933"},{"type":"FIX","url":"https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c"},{"type":"FIX","url":"https://github.com/avahi/avahi/pull/891"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/avahi/avahi","events":[{"introduced":"8ee3bd6f7921b489bde14f120187a5becf134d30"},{"fixed":"625ca0fac19229f6dfa3a6c6b698ae657187e50c"}],"database_specific":{"extracted_events":[{"introduced":"0.9-rc1"},{"last_affected":"0.9-rc1"},{"introduced":"0.9-rc2"},{"last_affected":"0.9-rc2"},{"introduced":"0.9-rc3"},{"last_affected":"0.9-rc3"}],"source":["CPE_STRING","REFERENCES"],"cpe":["cpe:2.3:a:avahi:avahi:0.9:rc1:*:*:*:*:*:*","cpe:2.3:a:avahi:avahi:0.9:rc2:*:*:*:*:*:*","cpe:2.3:a:avahi:avahi:0.9:rc3:*:*:*:*:*:*"]}}],"versions":["0.9-rc1","0.9-rc2","0.9-rc3","v0.9-rc3","v0.9-rc2","v0.9-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34933.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}