CVE-2026-77411: Improper Check for Unusual or Exceptional Conditions

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the declared field bytes unread, while readTable treats the...

PT-2026-93799

Name of the Vulnerable Software and Affected Versions RabbitMQ amqp091-go versions prior to 1.13.0 Description The Channel.dispatch function in channel.go, confirms.confirm in confirms.go, and Connection.dispatch0 in connection.go synchronously send publisher confirmations, flow-control events,...

PT-2026-93800

Name of the Vulnerable Software and Affected Versions RabbitMQ amqp091-go versions prior to 1.13.0 Description A flaw in the recvContent function allows a malicious or compromised AMQP broker to trigger an Out-of-Memory OOM error, which is a state where the system lacks enough memory to perform...

CVE-2026-77409: Allocation of Resources Without Limits or Throttling

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.dispatch in channel.go, confirms.confirm in confirms.go, and Connection.dispatch0 in connection.go synchronously send publisher confirmations, flow-control events, consumer cancellations, returned messages, including...

CVE-2026-77412: Incorrect Conversion between Numeric Types

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readField in read.go reads the length of an AMQP byte-array field with type tag x into a signed int32 and passes the value directly to make when allocating the field buffer. A malicious or compromised broker can encode a value such a...

PT-2026-93802

Name of the Vulnerable Software and Affected Versions RabbitMQ amqp091-go versions prior to 1.13.0 Description A flaw in the readField function allows a malicious or compromised AMQP broker to trigger an unhandled runtime panic, leading to a Denial of Service DoS by crashing the client process. T...

rabbitmq-server: rabbitmq-server: Denial of service via atom exhaustion in OAuth2 JWT scope parsing

A flaw was found in rabbitmq-server where its OAuth2 authentication backend improperly converts token scope values into Erlang runtime atoms. In deployments where an Identity Provider IdP allows users to influence scope contents within their signed JSON Web Tokens JWTs, an authenticated attacker...

rabbitmq-server: rabbitmq-server: Information disclosure via insecure authentication cookies

A flaw was found in rabbitmq-server. This vulnerability allows information disclosure due to insecure handling of authentication cookies following a login request. The application stores base64-encoded user credentials in a cookie that lacks essential security flags, such as Secure, HttpOnly, and...

rabbitmq-server: rabbitmq-server: Denial of Service via excessive memory allocation in stream management

A flaw was found in rabbitmq-server. An authenticated user with access to a virtual host can cause a Denial of Service DoS by sending a specially crafted HTTP request to the stream management application programming interface API. The server allocates substantial memory to process stream binding...

rabbitmq-server: rabbitmq-server: Information disclosure via unredacted credentials in Shovel crash logs

A flaw was found in rabbitmq-server. When the Shovel plugin worker process crashes due to network or connection failures, it fails to sanitize its internal state before logging error reports. As a result, sensitive connection details and unencrypted credentials, including plaintext passwords, are...

rabbitmq-server: rabbitmq-server: Unauthorized message routing via missing alternate-exchange permission check

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...

rabbitmq-server: rabbitmq-server: Denial of Service via consecutive wildcards in topic binding keys

A flaw was found in RabbitMQ. An authenticated remote user with permissions to bind queues to a topic exchange and publish messages can cause a Denial of Service DoS. By supplying consecutive wildcard characters within a topic binding key, the message routing engine redundantly evaluates matching...

rabbitmq: RabbitMQ: Authenticated user can bypass connection limits via stream protocol

A flaw was found in RabbitMQ. The stream protocol handler does not correctly enforce per-user and per-virtual host vhost connection limits. An authenticated user can exploit this by connecting through port 5552, bypassing the intended connection restrictions. This could lead to resource exhaustio...

rabbitmq-server: RabbitMQ: Denial of Service via atom table exhaustion in stream chunk_selector

A flaw was found in RabbitMQ. An authenticated stream client with read access to any stream can exploit a vulnerability in the getchunkselector/1 function. This function processes a client-supplied chunkselector property without proper validation, leading to an atom table exhaustion. Successful...

rabbitmq: RabbitMQ: Denial of Service via management API regular expression filter

A flaw was found in RabbitMQ. A remote attacker with management privileges could exploit a regular expression regex filter in the management API by providing a specially crafted regex to the ?name= filter. This vulnerability, known as Regular Expression Denial of Service ReDoS, causes excessive C...

rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI

A flaw was found in RabbitMQ, a messaging and streaming broker. Unsanitized virtual host names allow for XSS in the the management UI pages that list virtual hosts if the attacker manages to find a way to force a virtual host to restart. This vulnerability requires high privileges and user...

rabbitmq-server: rabbitmq-server: Authentication bypass via improper validation of floating-point token expiration timestamps

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...

rabbitmq-server: rabbitmq-server: Unauthorized user impersonation via stale OAuth token refresh

A flaw was found in rabbitmq-server. When an existing Advanced Message Queuing Protocol AMQP connection refreshes its authentication token to one with revoked impersonation privileges, the server fails to update the active session's security tags. As a result, an authenticated user can retain...

rabbitmq-server: RabbitMQ: Unauthorized cross-vhost message access via missing Federation upstream authorization

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...

rabbitmq: RabbitMQ: Denial of Service via unbounded consistent-hash exchange weight

A flaw was found in RabbitMQ. A user with write permission on a consistent-hash exchange and read on a queue can create a binding with an arbitrarily large integer as its routing key, which acts as a hash-ring weight. This unbounded weight causes the broker to allocate a significant amount of...