{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34933 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-34933 is a medium-severity denial of service vulnerability in avahi, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-34933 and fix it if it is affected.\n\nWhat it is: CVE-2026-34933 is a medium-severity denial of service vulnerability in avahi, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34933 exists.\n\nAffected product: avahi. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-34933/ (Markdown: https://insights.sbomify.com/CVE-2026-34933/index.md)","id":"CVE-2026-34933","markdown":"https://insights.sbomify.com/CVE-2026-34933/index.md","name":"CVE-2026-34933","record":{"aliases":["ALPINE-CVE-2026-34933","AZL-81959","BELL-CVE-2026-34933","DEBIAN-CVE-2026-34933","ECHO-a71e-9fdf-9b3d","GHSA-w65r-6gxh-vhvc","MINI-r3f8-676w-gv9w","OESA-2026-1854","OESA-2026-1982","OESA-2026-1983","OESA-2026-1984","OESA-2026-1985","OESA-2026-1986","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-2026:2296-1","SUSE-SU-2026:2297-1","UBUNTU-CVE-2026-34933","USN-8269-1","openSUSE-SU-2026:10670-1"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Avahi service discovery","requires_auth":"low_privilege","summary":"An unprivileged local user can crash the Avahi daemon by sending a specific D-Bus call with conflicting flags, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"avahi","vendor":"avahi"}],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"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.","ecosystems":["openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Avahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon","id":"CVE-2026-34933","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":1,"n_references":3,"next":{"headline":"PraisonAI: Second-Order SQL Injection in `get_all_user_threads`","id":"CVE-2026-34934"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["0.8-43.1"],"introduced":["0"],"last_affected":[],"package":"avahi","purl":"pkg:rpm/opensuse/avahi\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10670-1"}],"prev":{"headline":"hoppscotch: Stored XSS via mock server responses on backend origin","id":"CVE-2026-34932"},"products":["avahi"],"published":"2026-04-03","related":[{"cvss_score":9.1,"headline":"Denial of service in n/a","id":"CVE-2017-6519","kev_date_added":null,"published":"2017-05-01"},{"cvss_score":7.8,"headline":"Path traversal in n/a","id":"CVE-2021-26720","kev_date_added":null,"published":"2021-02-17"},{"cvss_score":6.5,"headline":"Avahi has Uncontrolled Recursion in lookup_handle_cname function","id":"CVE-2026-24401","kev_date_added":null,"published":"2026-01-24"},{"cvss_score":6.5,"headline":"Avahi has a reachable assertion in lookup_multicast_callback","id":"CVE-2025-68468","kev_date_added":null,"published":"2026-01-12"},{"cvss_score":6.5,"headline":"Avahi has a reachable assertion in lookup_start","id":"CVE-2025-68471","kev_date_added":null,"published":"2026-01-12"},{"cvss_score":6.2,"headline":"Reachable assertion in avahi_dns_packet_append_record","id":"CVE-2023-38469","kev_date_added":null,"published":"2023-11-02"},{"cvss_score":6.2,"headline":"Reachable assertion in avahi_escape_label","id":"CVE-2023-38470","kev_date_added":null,"published":"2023-11-02"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-11","vendors":["avahi"]},"summary":"An unprivileged local user can crash the Avahi daemon by sending a specific D-Bus call with conflicting flags, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-34933/"}