CyberRota Analysis
AI-GeneratedRabbitMQ versions 3.13.0 to 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5 are vulnerable due to a flaw in OAuth credential refresh that allows revoked runtime tags to persist, enabling unauthorized message publishing under an impersonated user ID. This issue primarily affects connections that previously held impersonator privileges and have been refreshed with downgraded tokens, leading to potential privilege escalation. Organizations using affected RabbitMQ versions should prioritize upgrading to the patched releases to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, RabbitMQ OAuth credential refresh retains revoked runtime tags. when an existing AMQP connection refreshes from an OAuth token that grants the impersonator tag to a valid same-username token that no longer grants that tag, RabbitMQ updates the OAuth backend implementation (token/scopes/expiry) but leaves the connection's runtime #user.tags unchanged. rabbitaccesscontrol:checkuserid/2 then still honors the stale impersonator tag, so the connection (including newly opened channels) can continue publishing messages with a foreign AMQP userid after that privilege should have been revoked. A fresh connection using the downgraded token correctly refuses the same publish, proving the defect is stale session state rather than the token Limited to connections that once held impersonator and successfully refresh to a downgraded same-username rabbitauthbackendoauth2 (or an equivalent refresh-capable backend that returns tags) is enabled for This issue is fixed in versions 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5.