{"id":"CVE-2026-77412","title":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client","summary":"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.…","severity":"high","cvss":8.9,"cvssVector":"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","cwe":["CWE-681","CWE-805"],"vendor":"rabbitmq","product":"amqp091-go","affected":["amqp091-go < 1.13.0"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:17:16.047","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77412","references":[{"url":"https://github.com/rabbitmq/amqp091-go/commit/669b42bf7b1db76bc6d4973e3634247f680accbf","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/amqp091-go/pull/344","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-4v58-74mf-rjx3","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77412"},{"url":"https://github.com/advisories/GHSA-4v58-74mf-rjx3"},{"url":"https://github.com/rabbitmq/amqp091-go"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-77412.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-77412"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535499"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-77412"},{"url":"https://access.redhat.com/errata/RHSA-2026:68290"}],"tags":["nvd","cve.org","ghsa","go","osv","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-16T15:05:07.698557Z"},"cvssSource":"cna","ingestedAt":"2026-09-16T14:57:28.034Z","aliases":["GHSA-4v58-74mf-rjx3"],"ecosystem":"go","patched":["github.com/rabbitmq/amqp091-go 1.13.0"],"scores":{"cna":8.9,"vendor":7.5},"epss":0.00411,"epssPercentile":0.34996,"slug":"CVE-2026-77412","body":"## Overview\n\nRabbitMQ 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-77412)\n\nAffected packages:\n\n- `github.com/rabbitmq/amqp091-go < 1.13.0`\n\nPatched in:\n\n- `github.com/rabbitmq/amqp091-go 1.13.0`\n\nSource: https://github.com/advisories/GHSA-4v58-74mf-rjx3\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Cryostat 4, Multicluster Global Hub, OpenShift Serverless, Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat OpenStack Platform 18.0, Red Hat Quay 3 · no fix planned: Cryostat 4, Multicluster Global Hub, OpenShift Serverless, Red Hat Advanced Cluster Management for Kubernetes 2, … · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-77412.json)\n- **RHSA-2026:68290** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-16 · [advisory](https://access.redhat.com/errata/RHSA-2026:68290)","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":49,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}