CVE-2026-67415

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, the Shovel parameter parser converted attacker-controlled runtime parameter values into non-garbage-collected Erlang atoms before bounding them or checking a fixed allowlist. Exploitation requires network access to th...

UBUNTU-CVE-2026-67223

RabbitMQ is a messaging and streaming broker. The advisory establishes affected 3.13, 4.0, 4.1, 4.2, and 4.3 maintenance lines but contains conflicting first-fixed versions for the 3.13, 4.0, and 4.1 lines. fill/2 substitutes $username into userdnpattern without RFC 4514 DN escaping, allowing a...

UBUNTU-CVE-2026-67419

RabbitMQ is a messaging and streaming broker. Prior to 4.3.5, an authenticated user who can bind a queue to a topic exchange and publish to it can use consecutive segments in a binding key to make both topic matchers revisit the same trie-node and routing-key-suffix states without memoization. Th...

UBUNTU-CVE-2026-67408

RabbitMQ is a messaging and streaming broker. From 4.1.0 until 4.3.3, 4.2.9, and 4.1.11, Stream Management Super-Stream Binding Keys Allocation Allows Low-Privilege Node Denial of Service. rabbitMQ 4.3.1 with rabbitmqstreammanagement enabled accepts PUT /api/stream/super-streams/vhost/name reques...

UBUNTU-CVE-2026-66073

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 →...

UBUNTU-CVE-2026-66071

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom to convert to a tag atom. The token signature is...

UBUNTU-CVE-2026-67230

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the Web STOMP WebSocket handler enforced neither maxframesize nor logintimeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frame...

UBUNTU-CVE-2026-67406

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, Shovel does not format state logged by the crash reporter and can leave unencrypted credentials in a crash dump file. the shovel worker genserver processes does not implement the formatstatus/2...

CVE-2026-66073

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 →...

CVE-2026-67412

A flaw was found in RabbitMQ. The Federation feature fails to enforce virtual host vhost authorization checks when validating upstream connections. An authenticated user with policy configuration privileges in one vhost can exploit this flaw by targeting another vhost where they lack permissions...

CVE-2026-67242

A flaw was found in rabbitmq-server. When configured to use OAuth 2.0 authentication, the server does not properly validate token expiration timestamps that are represented as floating-point numbers. A remote attacker with an expired token can exploit this issue to bypass expiration checks, gaini...

CVE-2026-67241

A flaw was found in rabbitmq-server. This vulnerability allows an authenticated user to bypass access controls and perform unauthorized message routing. When an exchange is declared via the Advanced Message Queuing Protocol AMQP 1.0 management interface, the application fails to verify write...

EUVD-2026-87244

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 toke...

CVE-2026-67420

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 toke...

CVE-2026-67420

The rabbitmq-server messaging and streaming broker is vulnerable to unauthorized user impersonation due to a flaw in how it handles OAuth credential refreshes . When an existing AMQP connection refreshes a token—transitioning from one that grants impersonation privileges to one that does not—the ...

CVE-2026-67420 RabbitMQ OAuth credential refresh retains revoked runtime tags

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 toke...

CVE-2026-67420

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 toke...

CVE-2026-67420 RabbitMQ OAuth credential refresh retains revoked runtime tags

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 toke...

CVE-2026-67420 RabbitMQ OAuth credential refresh retains revoked runtime tags

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 toke...

EUVD-2026-87243

RabbitMQ is a messaging and streaming broker. Prior to 4.3.5, an authenticated user who can bind a queue to a topic exchange and publish to it can use consecutive segments in a binding key to make both topic matchers revisit the same trie-node and routing-key-suffix states without memoization. Th...