{"answers":{"affected":"3 open source packages ship an affected version, including github.com/rabbitmq/amqp091-go.","exploited":"There is no known exploitation of CVE-2026-77412 in the wild and no public exploit code.","fix":"Upgrade github.com/rabbitmq/amqp091-go to 1.13.0 or later.","what":"CVE-2026-77412 is a high-severity denial of service vulnerability in rabbitmq amqp091-go, published on 16 Sep 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-2026-77412 and fix it if it is affected.\n\nWhat it is: CVE-2026-77412 is a high-severity denial of service vulnerability in rabbitmq amqp091-go, published on 16 Sep 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-2026-77412 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-2026-77412/ (Markdown: https://insights.sbomify.com/CVE-2026-77412/index.md)","id":"CVE-2026-77412","markdown":"https://insights.sbomify.com/CVE-2026-77412/index.md","name":"CVE-2026-77412","record":{"aliases":["AZL-103203","AZL-103293","CLEANSTART-2026-FS32533","CLEANSTART-2026-JY06223","CLEANSTART-2026-PK85962","DEBIAN-CVE-2026-77412","ECHO-3d51-73a3-7456","GHSA-4v58-74mf-rjx3","GO-2026-6494","MINI-27r4-65pv-8pgm","MINI-2g4g-97r2-8mfh","MINI-2r75-jwh2-wpjh","MINI-3356-p2g7-vxh9","MINI-362c-92cg-c8f7","MINI-3f6p-mm2c-c8c7","MINI-3mjr-5qg9-pq6c","MINI-3rx8-w45x-mr4w","MINI-49mw-hhw4-9xvq","MINI-4gwp-gg3j-2r2v","MINI-4pvx-pjjj-gq52","MINI-5h99-745p-6985","MINI-5j8g-q4gq-g8h7","MINI-5pv3-9jwm-x2x4","MINI-68h7-6jcw-6w86","MINI-6hjj-jghw-jw2h","MINI-7qh4-p2fw-3j2f","MINI-9r4w-6fx3-472m","MINI-9v6f-p64w-37pj","MINI-g9j6-rfw5-9prw","MINI-gcgw-45mj-34hj","MINI-hjf3-jfqh-259v","MINI-hmjj-pcrf-h4f9","MINI-jvh7-xq4v-6j89","MINI-mf87-x3g3-qw2p","MINI-mjxj-qxrv-xfvr","MINI-qf8c-7wgc-jqvx","MINI-r467-rc32-hr5j","MINI-rqq7-p8jh-wh48","MINI-rvfg-hf9x-r42r","MINI-v7qj-6r2w-cg38","MINI-v852-jr5j-xqrj","MINI-vpwh-jrjv-prw5","MINI-w6pj-hffh-wfx4","MINI-xm6m-g7v5-5c7f","MINI-xq55-4h8c-5g7r","ROOT-APP-GOBINARY-CVE-2026-77412","UBUNTU-CVE-2026-77412"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go AMQP client library","requires_auth":"none","summary":"A malicious AMQP broker can cause a client panic and process termination by sending a crafted field length, requiring an upgrade to the Go client library.","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-681","name":"Incorrect Conversion between Numeric Types"}],"description":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readField in read.go reads the length of an AMQP byte-array field with type tag x into a signed int32 and passes the value directly to make when allocating the field buffer. A malicious or compromised broker can encode a value such as 0xFFFFFFFF, which becomes -1 and causes a len out of range runtime panic. The panic escapes the network reader goroutine and terminates the client process, including during connection.start server properties or message header table parsing. This issue is fixed in version 1.13.0.","ecosystems":["Go"],"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 amqp091-go: Denial of Service via Malicious Field Length in AMQP Client","id":"CVE-2026-77412","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"JSONata: Arbitrary Code Execution via crafted JSONata expressions","id":"CVE-2026-77413"},"packages":[{"ecosystem":"Go","fixed":["1.13.0"],"introduced":["0"],"last_affected":[],"package":"github.com/rabbitmq/amqp091-go","purl":null,"source":"GHSA-4v58-74mf-rjx3"},{"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-4v58-74mf-rjx3"},{"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-2026-6494"}],"prev":{"headline":"RabbitMQ amqp091-go: Protocol Desynchronization and Frame Injection via Integer Overflow in readLongstr","id":"CVE-2026-77411"},"products":["amqp091-go"],"published":"2026-09-16","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":"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":"2026-09-16","vendors":["rabbitmq"]},"summary":"A malicious AMQP broker can cause a client panic and process termination by sending a crafted field length, requiring an upgrade to the Go client library.","url":"https://insights.sbomify.com/CVE-2026-77412/"}