{"id":"CVE-2026-34933","aliases":["ALPINE-CVE-2026-34933","AZL-81959","BELL-CVE-2026-34933","CLSA-2026-1785765391","CLSA-2026-1786027278","CLSA-2026-1786533280","DEBIAN-CVE-2026-34933","EUVD-2026-18910","GHSA-w65r-6gxh-vhvc","MGASA-2026-0338","OESA-2026-1854","OESA-2026-1982","OESA-2026-1983","OESA-2026-1984","OESA-2026-1985","OESA-2026-1986","RHSA-2026:11316","ROOT-OS-DEBIAN-12-CVE-2026-34933","ROOT-OS-DEBIAN-13-CVE-2026-34933","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","UBUNTU-CVE-2026-34933","openSUSE-SU-2026:10670-1","openSUSE-SU-2026:21014-1"],"status":"published","title":"Avahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon","description":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. 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This issue has been patched in version 0.9-rc4.","status":"published","published":"2026-04-03T22:43:26Z","modified":"2026-04-11T18:09:34Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T19:24:29.371024Z"}],"nvd":[{"id":"CVE-2026-34933","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.","status":"published","published":"2026-04-03T23:17:05.377Z","modified":"2026-07-24T22:10:00.14Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:12:13.1424Z"}],"osv":[{"id":"ALPINE-CVE-2026-34933","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.","status":"published","published":"2026-04-03T23:17:05.377Z","modified":"2026-10-01T02:17:49.260269826Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:50.269992Z"},{"id":"BELL-CVE-2026-34933","status":"published","published":"2026-04-07T06:09:09.302464Z","modified":"2026-04-19T07:17:38.155933Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:23.572955Z"},{"id":"CVE-2026-34933","title":"Avahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon","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.","status":"published","published":"2026-04-03T22:43:26.683Z","modified":"2026-10-28T02:30:27.748169528Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T15:45:02.673625Z"},{"id":"DEBIAN-CVE-2026-34933","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.","status":"published","published":"2026-04-03T23:17:05.377Z","modified":"2026-10-01T03:03:22.27067928Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:54.587575Z"},{"id":"OESA-2026-1854","title":"avahi security update","description":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\n\nAvahi 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.(CVE-2026-34933)","status":"published","published":"2026-04-11T11:10:52Z","modified":"2026-08-18T01:19:46.926661758Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-1982","title":"avahi security update","description":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\n\nAvahi 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.(CVE-2026-34933)","status":"published","published":"2026-04-17T11:10:59Z","modified":"2026-08-18T01:19:39.305027615Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-1983","title":"avahi security update","description":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\n\nAvahi 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.(CVE-2026-34933)","status":"published","published":"2026-04-17T11:10:59Z","modified":"2026-08-18T01:19:39.260205527Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-1984","title":"avahi security update","description":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\n\nAvahi 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.(CVE-2026-34933)","status":"published","published":"2026-04-17T11:10:59Z","modified":"2026-08-18T01:19:39.304715075Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-1985","title":"avahi security update","description":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\n\nAvahi 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.(CVE-2026-34933)","status":"published","published":"2026-04-17T11:10:59Z","modified":"2026-08-18T01:19:39.321706884Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-1986","title":"avahi security update","description":"Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. This enables you to plug your laptop or computer into a network and instantly be able to view other people who you can chat with, find printers to print to or find files being shared.\r\n\r\nSecurity Fix(es):\n\nAvahi 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.(CVE-2026-34933)","status":"published","published":"2026-04-17T11:10:59Z","modified":"2026-08-18T01:19:39.30761801Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"RHSA-2026:11316","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","status":"published","published":"2026-04-28T10:08:10Z","modified":"2026-10-06T10:31:13.167428395Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:18.066978Z"},{"id":"ROOT-OS-DEBIAN-12-CVE-2026-34933","title":"CVE-2026-34933 in avahi - Patched by Root","description":"Root has patched CVE-2026-34933 in the avahi package for Root:Debian:12. Multiple fixed versions available.","status":"published","published":"2026-08-25T08:31:45Z","modified":"2026-08-26T01:10:40.443519815Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:32.037361Z"},{"id":"ROOT-OS-DEBIAN-13-CVE-2026-34933","title":"CVE-2026-34933 in avahi - Patched by Root","description":"Root has patched CVE-2026-34933 in the avahi package for Root:Debian:13. Multiple fixed versions available.","status":"published","published":"2026-08-23T14:15:48Z","modified":"2026-08-23T17:00:03.129445806Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:33.415244Z"},{"id":"UBUNTU-CVE-2026-34933","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.","status":"published","published":"2026-04-03T23:17:00Z","modified":"2026-08-19T19:14:12.915900393Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:56:16.036833Z"},{"id":"AZL-81959","title":"CVE-2026-34933 affecting package avahi for versions less than 0.8-8","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.","status":"published","published":"2026-04-03T23:17:05Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:24.988217Z"},{"id":"CLSA-2026-1785765391","title":"avahi: Fix of 2 CVEs","description":"- CVE-2025-68276: refuse to create wide-area record browsers when\n  wide-area lookups are disabled; an unprivileged local user could crash\n  avahi-daemon over D-Bus by passing AVAHI_LOOKUP_USE_WIDE_AREA to\n  RecordBrowserNew, reaching an assertion in avahi_wide_area_scan_cache\n- CVE-2026-34933: reject publish flags that set both\n  AVAHI_PUBLISH_USE_WIDE_AREA and AVAHI_PUBLISH_USE_MULTICAST; the\n  conflicting pair tripped an assertion in transport_flags_from_domain\n  and crashed avahi-daemon from any unprivileged local D-Bus caller","status":"published","published":"2026-08-03T13:56:44Z","modified":"2026-10-26T09:30:30.512549518Z","updated_at":"2026-11-02T15:43:46.850893Z"},{"id":"CLSA-2026-1786027278","title":"avahi: Fix of 4 CVEs","description":"- CVE-2025-68468: fix remote denial of service via crafted mDNS CNAME announcements (assertion failure in lookup_multicast_callback)\n- CVE-2025-68471: fix remote denial of service via unsolicited CNAME announcements (assertion failure in lookup_start)\n- CVE-2025-68276: fix local denial of service via D-Bus record browsers using AVAHI_LOOKUP_USE_WIDE_AREA when wide-area is disabled\n- CVE-2026-34933: fix local denial of service via D-Bus publish flags setting both AVAHI_PUBLISH_USE_WIDE_AREA and AVAHI_PUBLISH_USE_MULTICAST","status":"published","published":"2026-08-06T14:41:41Z","modified":"2026-10-26T09:43:55.103700231Z","updated_at":"2026-11-02T15:43:46.850893Z"},{"id":"CLSA-2026-1786533280","title":"avahi: Fix of 3 CVEs","description":"- CVE-2026-34933: refuse publish flags with both AVAHI_PUBLISH_USE_WIDE_AREA and AVAHI_PUBLISH_USE_MULTICAST set\n- CVE-2025-59529: limit local simple-protocol clients to prevent memory and file descriptor exhaustion\n- CVE-2025-68276: refuse to create wide-area record browsers when wide-area is off","status":"published","published":"2026-08-13T05:52:23Z","modified":"2026-10-26T09:43:17.441634841Z","updated_at":"2026-11-02T15:43:46.850893Z"},{"id":"MGASA-2026-0338","title":"Updated avahi packages fix security vulnerabilities","description":"Simple protocol server ignores accepts unlimited connections and logs\nfailures without limit. (CVE-2025-59529)\nAvahi has Uncontrolled Recursion in lookup_handle_cname function.\n(CVE-2026-24401)\nReachable assertion in `transport_flags_from_domain()` via conflicting\npublish flags crashes avahi-daemon. (CVE-2026-34933)\n","status":"published","published":"2026-08-27T19:15:31Z","modified":"2026-08-27T19:30:04.077177227Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:10670-1","title":"avahi-0.8-43.1 on GA media","description":"These are all security issues fixed in the avahi-0.8-43.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-05-04T00:00:00Z","modified":"2026-05-05T07:46:20.991547Z","updated_at":"2026-11-02T16:58:38.415593Z"},{"id":"openSUSE-SU-2026:21014-1","title":"Security update for avahi","description":"This update for avahi fixes the following issues:\n\n- CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).\n- CVE-2026-24401: unsolicited mDNS responses containing a recursive CNAME record can crash the `avahi-daemon`\n  (bsc#1257235).\n","status":"published","published":"2026-06-22T14:40:15Z","modified":"2026-06-30T18:24:35.772909253Z","updated_at":"2026-11-02T16:58:41.885092Z"},{"id":"SUSE-SU-2026:21417-1","title":"Security update for avahi","description":"This update for avahi fixes the following issues:\n\n- CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).\n","status":"published","published":"2026-04-29T11:16:55Z","modified":"2026-05-01T18:27:05.558419Z","updated_at":"2026-11-02T15:54:02.312556Z"},{"id":"SUSE-SU-2026:21631-1","title":"Security update for avahi","description":"This update for avahi fixes the following issues:\n\n- CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).\n","status":"published","published":"2026-05-09T15:48:27Z","modified":"2026-05-16T18:24:58.076589Z","updated_at":"2026-11-02T15:54:02.312556Z"},{"id":"SUSE-SU-2026:22258-1","title":"Security update for avahi","description":"This update for avahi fixes the following issues:\n\n- CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).\n- CVE-2026-24401: unsolicited mDNS responses containing a recursive CNAME record can crash the `avahi-daemon`\n  (bsc#1257235).\n","status":"published","published":"2026-06-22T14:38:22Z","modified":"2026-06-30T18:24:31.608072085Z","updated_at":"2026-11-02T15:54:02.654057Z"},{"id":"SUSE-SU-2026:22338-1","title":"Security update for avahi","description":"This update for avahi fixes the following issues:\n\n- CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).\n- CVE-2026-24401: unsolicited mDNS responses containing a recursive CNAME record can crash the `avahi-daemon`\n  (bsc#1257235).\n","status":"published","published":"2026-06-22T14:38:22Z","modified":"2026-07-02T18:24:12.343272718Z","updated_at":"2026-11-02T15:54:03.080707Z"},{"id":"SUSE-SU-2026:2296-1","title":"Security update for avahi","description":"This update for avahi fixes the following issue:\n\n- CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).\n","status":"published","published":"2026-06-08T10:16:33Z","modified":"2026-06-09T09:00:04.60168483Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:2297-1","title":"Security update for avahi","description":"This update for avahi fixes the following issue:\n\n- CVE-2026-34933: Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus\n  method call with conflicting publish flags (bsc#1261546).\n","status":"published","published":"2026-06-08T10:17:03Z","modified":"2026-06-09T09:00:07.442176927Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:2311-1","title":"Security update for avahi","description":"This update for avahi fixes the following issue:\n\n- CVE-2026-24401: uncontrolled recursion in `lookup_handle_cname` can crash the `avahi-daemon` (bsc#1257235).\n- CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can crash the `avahi-daemon` (bsc#1261546).    \n","status":"published","published":"2026-06-09T11:05:45Z","modified":"2026-06-10T08:30:05.287013432Z","updated_at":"2026-11-02T15:54:03.503431Z"}]}}