RabbitMQ: Atom table exhaustion via management API node field
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| rabbitmq | rabbitmq-server | affected |
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Configuration 1 [-]
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No data.
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| Rabbitmq | Rabbitmq-server |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.471% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Broadcom
Broadcom rabbitmq Server |
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| CPEs | cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Broadcom
Broadcom rabbitmq Server |
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| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Rabbitmq
Rabbitmq rabbitmq-server |
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| Vendors & Products |
Rabbitmq
Rabbitmq rabbitmq-server |
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| Description | RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6, Atom table exhaustion via management API node field. pUT /api/queues/:vhost/:name (and the exchanges and bindings endpoints) accepts a node JSON field. The value goes through rabbitnodes:make → listtoatom with no cluster membership check first. Each unique value permanently leaks one atom. A March 2026 refactoring (ea61ce2563) introduced safe helpers in rabbitmgmtnodes.erl (parsenodename, safeatom, and requirenodename, using binarytoexistingatom) and fixed several callers (QQ replica ops, wmauthattempts, wmnodememoryets, getsortreverse, and rabbitfederationmgmt), but getnode/1 in rabbitmgmtutil.erl:880-885, the primary vector used by directrequest/6, was not Roughly 900K requests crash the VM via systemlimit, and all tenants lose Any user with the management tag and one vhost, the lowest privilege This issue is fixed in versions 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6. | |
| Title | RabbitMQ: Atom table exhaustion via management API node field | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV4_0
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