{"id":"CVE-2026-61837","title":"RabbitMQ is a messaging and streaming broker","summary":"RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3, 4.2.9, 4.1.14, and 4.0.23, AMQP 1.0 management GET /bindings exposes full binding topology to any authenticated AMQP user without resource/management permission checks…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-285","CWE-862","CWE-425"],"vendor":"broadcom","product":"rabbitmq_server","affected":["rabbitmq_server >= 4.0.0, < 4.0.23","rabbitmq_server >= 4.1.0, < 4.1.14","rabbitmq_server >= 4.2.0, < 4.2.9","rabbitmq_server >= 4.3.0, < 4.3.3"],"patched":["rabbitmq_server 4.3.3"],"published":"2026-09-25","updated":"2026-10-15","sourceUpdated":"2026-10-15T20:22:41.003","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61837","references":[{"url":"https://github.com/rabbitmq/rabbitmq-server/commit/341e3f2795ebd1f816e712530f651a3221d23ad9","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-server/commit/b94004dea530f961b3dc649d94969b89f1a3183f","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-w9hf-476r-443x","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-w9hf-476r-443x","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-61837.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-61837"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541517"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-61837"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61837"},{"url":"https://access.redhat.com/errata/RHSA-2026:67552"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat","score-dispute"],"epss":0.00298,"epssPercentile":0.22314,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-29T19:27:34.351868Z"},"scores":{"nvd":5.3,"cna":6.3,"vendor":4.3},"ingestedAt":"2026-09-25T17:13:14.023Z","slug":"CVE-2026-61837","body":"## Overview\n\nRabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3, 4.2.9, 4.1.14, and 4.0.23, AMQP 1.0 management GET /bindings exposes full binding topology to any authenticated AMQP user without resource/management permission checks. the AMQP 1.0 HTTP-over-AMQP management endpoint GET /bindings (the rabbitamqpmanagement handler) enumerates bindings between an arbitrary source exchange and destination queue/exchange in the caller's virtual host without performing any resource-level permission check. Unlike every sibling operation in the same module (which call checkresourceaccess / bindingchecks), the GET handler ignores the authenticated User and returns the binding list unchanged. As a result, any authenticated AMQP 1.0 client that can open a management link pair , including users with no management/monitoring/policymaker/administrator tag , can enumerate the complete binding topology (source exchanges, destination queues/exchanges, routing keys, and binding arguments) of the virtual host they can access. The equivalent HTTP management API (GET /api/bindings) Confidentiality impact: a non-management AMQP 1.0 user can enumerate the complete routing topology of any virtual host it can connect to , every (source exchange, destination queue/exchange, routing key, binding arguments) This issue is fixed in versions 4.3.3, 4.2.9, 4.1.14, and 4.0.23.\n\n## Affected\n\n- `rabbitmq_server >= 4.0.0, < 4.0.23`\n- `rabbitmq_server >= 4.1.0, < 4.1.14`\n- `rabbitmq_server >= 4.2.0, < 4.2.9`\n- `rabbitmq_server >= 4.3.0, < 4.3.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `rabbitmq_server 4.3.3`\n\n## Vendor advisories\n\n- **RHSA-2026:67552** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:67552)\n- **Red Hat VEX** · Moderate · affected: Red Hat Hardened Images, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1, Red Hat OpenStack Platform 18.0 · no fix planned: Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1, Red Hat Hardened Images, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-61837.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":230115,"id":"CVE-2026-61837","ts":1793124792498,"field":"cvss","old":"6.3","new":"5.3"},{"seq":213096,"id":"CVE-2026-61837","ts":1790711144641,"field":"exploit_available","old":"false","new":"true"}]}