{"answers":{"affected":"1 open source package ship an affected version, including rabbitmq. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-66080 in the wild and no public exploit code.","fix":"Upgrade rabbitmq to a fixed version for your release line: 4.1.11 or 4.2.6.","what":"CVE-2026-66080 is a medium-severity denial of service vulnerability in Broadcom Rabbitmq Server, published on 23 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-66080 and fix it if it is affected.\n\nWhat it is: CVE-2026-66080 is a medium-severity denial of service vulnerability in Broadcom Rabbitmq Server, published on 23 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-66080 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- rabbitmq (Bitnami): affected from 4.1.0; fixed in 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-2026-66080/ (Markdown: https://insights.sbomify.com/CVE-2026-66080/index.md)","id":"CVE-2026-66080","markdown":"https://insights.sbomify.com/CVE-2026-66080/index.md","name":"CVE-2026-66080","record":{"aliases":["BIT-rabbitmq-2026-66080","DEBIAN-CVE-2026-66080","GHSA-wg79-5449-m728","UBUNTU-CVE-2026-66080"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"RabbitMQ message broker","requires_auth":"high_privilege","summary":"An attacker with management access can cause denial of service by requesting excessive super-stream partitions, leading to unbounded memory allocation.","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":5.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"RabbitMQ is a messaging and streaming broker. Prior to versions 4.1.11, 4.2.6, and 4.3.0, validate_partitions only checks that the requested partition count is at least 1, with no upper bound. A large count such as lists:seq(0, 500000000) allocates roughly 8GB. Preconditions include The rabbitmq_stream_management plugin must be enabled. The caller needs the management tag and access to the target vhost.. This issue is fixed in versions 4.1.11, 4.2.6, and 4.3.0.","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: Super-stream partitions unbounded allocation","id":"CVE-2026-66080","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":"Apache Thrift: c_glib read_message_begin leaves output parameters unset for non-versioned messages","id":"CVE-2026-66081"},"packages":[{"ecosystem":"Bitnami","fixed":["4.1.11","4.2.6"],"introduced":["4.1.0","4.2.0"],"last_affected":[],"package":"rabbitmq","purl":"pkg:bitnami/rabbitmq","source":"BIT-rabbitmq-2026-66080"}],"prev":{"headline":"RabbitMQ: Pre-auth AMQP 1.0 array32 zero-width element DoS","id":"CVE-2026-66079"},"products":["rabbitmq-server"],"published":"2026-09-23","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":"2026-09-24","vendors":["rabbitmq"]},"summary":"An attacker with management access can cause denial of service by requesting excessive super-stream partitions, leading to unbounded memory allocation.","url":"https://insights.sbomify.com/CVE-2026-66080/"}