CVE-2026-61837 rabbitmq CVE debrief

Who should care

RabbitMQ administrators and users with access to AMQP 1.0 management endpoints should assess exposure and verify versions. This includes operators managing RabbitMQ instances, security teams responsible for vulnerability management, and platform administrators who need to ensure that patches are applied and configurations are secure.

Why it matters

CVE-2026-61837 allows enumeration of RabbitMQ binding topology, potentially exposing routing information to non-management users. Defenders should verify versions, restrict access, and monitor for suspicious activity.

• Potential enumeration of binding topology by non-management AMQP 1.0 users
• Possible exposure of routing topology
• Verification of RabbitMQ version and patching required

Technical summary

RabbitMQ vulnerability allowing enumeration of binding topology via AMQP 1.0 management GET /bindings endpoint without resource/management permission checks. This issue allows non-management AMQP 1.0 users to enumerate the complete routing topology of any virtual host they can connect to, including source exchanges, destination queues/exchanges, routing keys, and binding arguments. The vulnerability is fixed in RabbitMQ versions 4.3.3, 4.2.9, 4.1.14, and 4.0.23. Defenders should prioritize verifying and mitigating this vulnerability in RabbitMQ instances, especially those with AMQP 1.0 management enabled.

Defensive priority

Defenders should prioritize verifying and mitigating this vulnerability in RabbitMQ instances, especially those with AMQP 1.0 management enabled.

Recommended defensive actions

• Verify RabbitMQ version and apply patches if necessary
• Restrict access to AMQP 1.0 management endpoints
• Monitor for suspicious activity on RabbitMQ instances
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional verification is needed to confirm affected versions and instances. Further review of RabbitMQ versions, configurations, and access controls is necessary to assess exposure. Verify that patches have been applied and configurations have been adjusted according to vendor guidance.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.