{"schema":"threatline.record/2","record":{"id":"CVE-2026-67222","aliases":["GHSA-85jr-6rr2-j73r"],"summary":"RabbitMQ: list_to_atom on auth_mechanism URI tokens in amqp_client","details":"RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, mechanisms/1 applied list_to_atom/1 to every colon-delimited token in an attacker-controlled auth_mechanism value, permanently consuming Erlang VM atoms and allowing the node to be crashed with a large request. Exploitation requires the Shovel or Federation plugin to be in use, and setting auth_mechanism requires the policymaker tag. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.","categories":["Unclassified"],"product":"rabbitmq-server","vendor":"rabbitmq","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-67222","source_modified_at":"2026-09-28T13:46:28.381Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"rabbitmq-server","vendor":"rabbitmq","versions":[{"status":"affected","version":">= 3.13.0, < 3.13.15"},{"status":"affected","version":">= 4.0.0, < 4.0.20"},{"status":"affected","version":">= 4.1.0, < 4.1.11"},{"status":"affected","version":">= 4.2.0, < 4.2.6"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"range":">= 3.13.0, < 3.13.15"},{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"range":">= 4.0.0, < 4.0.20"},{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"range":">= 4.1.0, < 4.1.11"},{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"range":">= 4.2.0, < 4.2.6"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"version":"3.13.15"},{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"version":"4.0.20"},{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"version":"4.1.11"},{"source":"GitHub Advisory Database","source_url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","source_modified_at":"2026-07-31T10:39:50Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"erlang","name":"amqp_client"},"version":"4.2.6"}],"cvss":5.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00318,"percentile":0.23566,"score_date":"2026-10-23"},"published_at":"2026-09-25T16:00:16.437Z","modified_at":"2026-09-28T13:46:28.381Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-67222","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-28T13:46:28.381Z"},{"source":"GitHub Advisory Database","url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","fetched_at":"2026-10-23T20:37:03.234832Z","source_modified_at":"2026-07-31T10:39:50Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-67222","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-85jr-6rr2-j73r","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-28T13:46:20.340797Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-28T13:46:28.381Z","content_hash":"17a3c2f19ddd554b4a562ddacb685f1115362b60509d1e4aa793627432032f44"}}