{"answers":{"affected":"3 open source packages ship an affected version, including github.com/rabbitmq/amqp091-go.","exploited":"There is no known exploitation of CVE-2026-79921 in the wild and no public exploit code.","fix":"Upgrade github.com/rabbitmq/amqp091-go to 1.13.0 or later.","what":"CVE-2026-79921 is a high-severity denial of service vulnerability in rabbitmq amqp091-go, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-79921 and fix it if it is affected.\n\nWhat it is: CVE-2026-79921 is a high-severity denial of service vulnerability in rabbitmq amqp091-go, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-79921 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/rabbitmq/amqp091-go (Go): affected all versions; fixed in 1.13.0\n- github.com/rabbitmq/amqp091-go (Go): affected all versions; fixed in 1.13.0\n- github.com/rabbitmq/amqp091-go (Go): affected all versions; fixed in 1.13.0\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-2026-79921/ (Markdown: https://insights.sbomify.com/CVE-2026-79921/index.md)","id":"CVE-2026-79921","markdown":"https://insights.sbomify.com/CVE-2026-79921/index.md","name":"CVE-2026-79921","record":{"aliases":["AZL-98201","AZL-98214","CLEANSTART-2026-FG67434","CLEANSTART-2026-KZ39555","CLEANSTART-2026-NH00645","DEBIAN-CVE-2026-79921","ECHO-ff16-51d4-31db","GHSA-6c5v-hqjr-5xxp","GO-2026-6372","MINI-32v9-34c3-6j95","MINI-48p7-5g7h-c25j","MINI-4fw7-m96x-cp87","MINI-5457-p2p5-vg2j","MINI-5575-27vm-x647","MINI-68mx-gpp7-qxq2","MINI-69gg-4px5-v79w","MINI-7rg4-7wrm-73hp","MINI-835q-vrcq-mgh3","MINI-8pm6-7gwv-6392","MINI-93mh-x67c-7jm7","MINI-9jwx-c86m-52q9","MINI-c2q9-28jf-q6h7","MINI-c68f-6qq2-543g","MINI-c85j-hrvj-992g","MINI-cvgf-c235-v65x","MINI-fc49-94pg-f4g3","MINI-fpv9-jxqg-g7mr","MINI-fvq6-4c3r-89p4","MINI-fx3m-cgp6-qg8j","MINI-fxj6-j3wh-9r28","MINI-gcm3-mg6c-xr42","MINI-h3rr-xfrj-8cpg","MINI-h6w7-pxmw-h9r7","MINI-hfw9-m8fq-fjmw","MINI-hq8p-m2vr-hrmv","MINI-jqx4-c893-46gv","MINI-m7x5-6jhw-hm33","MINI-pgg7-vvwh-r37g","MINI-q32h-5mv3-5hvj","MINI-q7gp-xrr2-2xg9","MINI-q85x-qcmw-37xf","MINI-rmxc-6m99-cv67","MINI-rv4r-jxjq-7wq3","MINI-vhj5-jc6r-ch82","MINI-wxf4-7q4p-pq68","RHSA-2026:60854","ROOT-APP-GOBINARY-CVE-2026-79921","UBUNTU-CVE-2026-79921"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go AMQP client","requires_auth":"none","summary":"A malicious AMQP broker can cause memory exhaustion and denial of service in the amqp091-go client by sending oversized payload frames.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.9,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"amqp091-go is a Go AMQP 0.9.1 client. Before version 1.13.0, a compromised or malicious AMQP broker can force the client to allocate resources for and process content body frames that exceed the negotiated frame_max limit. This can lead to unexpected memory consumption or application-layer denial of service (DoS), bypassing the protocol's built-in framing constraints. Version 1.13.0 contains a fix. No known workarounds are available.","ecosystems":["Go","Red Hat:hummingbird:1"],"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":"amqp091-go has a Potential Memory Exhaustion/Protocol Violation via Broker-Controlled Oversized Payload","id":"CVE-2026-79921","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"Auth bypass in Cyber Recovery","id":"CVE-2026-79938"},"packages":[{"ecosystem":"Go","fixed":["1.13.0"],"introduced":["0"],"last_affected":[],"package":"github.com/rabbitmq/amqp091-go","purl":null,"source":"GHSA-6c5v-hqjr-5xxp"},{"ecosystem":"Go","fixed":["1.13.0"],"introduced":["0"],"last_affected":[],"package":"github.com/rabbitmq/amqp091-go","purl":"pkg:golang/github.com/rabbitmq/amqp091-go","source":"GHSA-6c5v-hqjr-5xxp"},{"ecosystem":"Go","fixed":["1.13.0"],"introduced":["0"],"last_affected":[],"package":"github.com/rabbitmq/amqp091-go","purl":"pkg:golang/github.com/rabbitmq/amqp091-go","source":"GO-2026-6372"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:0.159.0-0.1.1.hum1"],"introduced":["0"],"last_affected":[],"package":"opentelemetry-collector-contrib","purl":"pkg:rpm/redhat/opentelemetry-collector-contrib","source":"RHSA-2026:60854"}],"prev":{"headline":"Ajenti: Privilege escalation to root via unauthenticated/unauthorized plugin install task","id":"CVE-2026-79920"},"products":["amqp091-go"],"published":"2026-08-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-29","vendors":["rabbitmq"]},"summary":"A malicious AMQP broker can cause memory exhaustion and denial of service in the amqp091-go client by sending oversized payload frames.","url":"https://insights.sbomify.com/CVE-2026-79921/"}