{"answers":{"affected":"1 open source package ship an affected version, including rabbitmq. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-66073 in the wild and no public exploit code.","fix":"Upgrade rabbitmq to a fixed version for your release line: 3.13.15, 4.0.20, 4.1.11 or 4.2.6.","what":"CVE-2026-66073 is a medium-severity denial of service vulnerability in Broadcom Rabbitmq Server, published on 25 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-66073 and fix it if it is affected.\n\nWhat it is: CVE-2026-66073 is a medium-severity denial of service vulnerability in Broadcom Rabbitmq Server, published on 25 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-66073 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- rabbitmq (Bitnami): affected from 3.13.0; fixed in 3.13.15, 4.0.20, 4.1.11, 4.2.6\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-2026-66073/ (Markdown: https://insights.sbomify.com/CVE-2026-66073/index.md)","id":"CVE-2026-66073","markdown":"https://insights.sbomify.com/CVE-2026-66073/index.md","name":"CVE-2026-66073","record":{"aliases":["AZL-105302","BIT-rabbitmq-2026-66073","DEBIAN-CVE-2026-66073","GHSA-6v53-r759-jrvx","UBUNTU-CVE-2026-66073"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"RabbitMQ message broker","requires_auth":"low_privilege","summary":"Authenticated users can crash the RabbitMQ server by exhausting the atom table via the management API, causing a denial of service for all tenants.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"rabbitmq_server","vendor":"broadcom"}],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6, Atom table exhaustion via management API node field. pUT /api/queues/:vhost/:name (and the exchanges and bindings endpoints) accepts a node JSON field. The value goes through rabbitnodes:make → listtoatom with no cluster membership check first. Each unique value permanently leaks one atom. A March 2026 refactoring (ea61ce2563) introduced safe helpers in rabbitmgmtnodes.erl (parsenodename, safeatom, and requirenodename, using binarytoexistingatom) and fixed several callers (QQ replica ops, wmauthattempts, wmnodememoryets, getsortreverse, and rabbitfederationmgmt), but getnode/1 in rabbitmgmtutil.erl:880-885, the primary vector used by directrequest/6, was not Roughly 900K requests crash the VM via systemlimit, and all tenants lose Any user with the management tag and one vhost, the lowest privilege This issue is fixed in versions 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6.","ecosystems":["Bitnami"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"RabbitMQ: Atom table exhaustion via management API node field","id":"CVE-2026-66073","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"broadcom:rabbitmq_server","products":["broadcom:rabbitmq_server"],"type":"denial_of_service","year":"2026"},"n_packages":1,"n_references":3,"next":{"headline":"RabbitMQ: ReDoS via management API ?name= filter","id":"CVE-2026-66074"},"packages":[{"ecosystem":"Bitnami","fixed":["3.13.15","4.0.20","4.1.11","4.2.6"],"introduced":["3.13.0","4.0.0","4.1.0","4.2.0"],"last_affected":[],"package":"rabbitmq","purl":"pkg:bitnami/rabbitmq","source":"BIT-rabbitmq-2026-66073"}],"prev":{"headline":"RabbitMQ: Atom table exhaustion via stream `chunk_selector`","id":"CVE-2026-66072"},"products":["rabbitmq-server"],"published":"2026-09-25","related":[{"cvss_score":9.8,"headline":"Auth bypass in Pivotal RabbitMQ 3.x before 3.5.8 and 3.6.x before 3.6.6; RabbitMQ for PCF 1.5.x before 1.5.20, 1.6.x before 1.6.12 and 1.7.x before 1.7.7","id":"CVE-2016-9877","kev_date_added":null,"published":"2016-12-29"},{"cvss_score":9.2,"headline":"RabbitMQ: OAuth2 silent verify_none fallback for JWKS fetch","id":"CVE-2026-67404","kev_date_added":null,"published":"2026-09-23"},{"cvss_score":9.1,"headline":"RabbitMQ: Trust-store whitelist by Issuer+Serial only","id":"CVE-2026-67231","kev_date_added":null,"published":"2026-09-23"},{"cvss_score":8.7,"headline":"Information disclosure in rabbitmq-server","id":"CVE-2026-57219","kev_date_added":null,"published":"2026-07-10"},{"cvss_score":8.2,"headline":"RabbitMQ: Plaintext username:password stored in an insecure cookie after successful POST /login","id":"CVE-2026-67236","kev_date_added":null,"published":"2026-09-25"},{"cvss_score":8.2,"headline":"RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS","id":"CVE-2026-67409","kev_date_added":null,"published":"2026-09-25"},{"cvss_score":8.2,"headline":"RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint","id":"CVE-2026-67410","kev_date_added":null,"published":"2026-09-25"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-25","vendors":["rabbitmq"]},"summary":"Authenticated users can crash the RabbitMQ server by exhausting the atom table via the management API, causing a denial of service for all tenants.","url":"https://insights.sbomify.com/CVE-2026-66073/"}