CVE-2026-67409 RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18, JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CWE-252. the JWKS key fetching mechanism in uaajwt.erl does not validate the HTTP response...

CVE-2026-67409

The messaging broker RabbitMQ is vulnerable to a Denial of Service (DoS) attack (CWE-252) in versions 3.13.0 through 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18. The root cause is that the JWKS key fetching mechanism in uaajwt.erl fails to validate the HTTP response status code when downloading sig...

EUVD-2026-87159

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18, JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CWE-252. the JWKS key fetching mechanism in uaajwt.erl does not validate the HTTP response...

CVE-2026-67409 RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18, JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CWE-252. the JWKS key fetching mechanism in uaajwt.erl does not validate the HTTP response...

CVE-2026-66073

RabbitMQ versions 3.13.0 to 3.13.14 , 4.0.19 , 4.1.10 , and 4.2.5 are vulnerable to Atom table exhaustion via the management API. The issue occurs because the PUT /api/queues/:vhost/:name (along with exchanges and bindings endpoints) accepts a node JSON field that passes through rabbitnodes:make ...

EUVD-2026-87149

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-2026-66073 RabbitMQ: Atom table exhaustion via management API node field

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-2026-66073 RabbitMQ: Atom table exhaustion via management API node field

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-2026-67225

RabbitMQ , a messaging and streaming broker, is vulnerable to a denial of service (DoS) condition when the stream plugin is enabled. The flaw exists because the stream protocol correctly negotiated a FrameMax value during the Tune handshake but failed to validate an inbound frame's declared lengt...

CVE-2026-67225 RabbitMQ: Stream-protocol frame length never validated against frame_max

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 stream protocol stored the FrameMax value negotiated during the Tune handshake but did not compare it with an inbound frame's declared length before buffering the frame. With the stream plugin...

CVE-2026-67230

The messaging and streaming broker RabbitMQ is vulnerable in versions 3.13.0 through 3.13.14 , 4.0.0 through 4.0.19 , 4.1.0 through 4.1.10 , and 4.2.0 through 4.2.5 . The vulnerability exists in the Web STOMP WebSocket handler when the rabbitmq_web_stomp plugin is enabled. Because the handler fai...

CVE-2026-67230 RabbitMQ: Web-STOMP unbounded pre-auth accumulation

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...

EUVD-2026-87144

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...

CVE-2026-67230 RabbitMQ: Web-STOMP unbounded pre-auth accumulation

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...

CVE-2026-67222 RabbitMQ: list_to_atom on auth_mechanism URI tokens in amqp_client

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, mechanisms/1 applied listtoatom/1 to every colon-delimited token in an attacker-controlled authmechanism value, permanently consuming Erlang VM atoms and allowing the node to be crashed with a larg...

CVE-2026-67222 RabbitMQ: list_to_atom on auth_mechanism URI tokens in amqp_client

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, mechanisms/1 applied listtoatom/1 to every colon-delimited token in an attacker-controlled authmechanism value, permanently consuming Erlang VM atoms and allowing the node to be crashed with a larg...

CVE-2026-67222 RabbitMQ: list_to_atom on auth_mechanism URI tokens in amqp_client

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, mechanisms/1 applied listtoatom/1 to every colon-delimited token in an attacker-controlled authmechanism value, permanently consuming Erlang VM atoms and allowing the node to be crashed with a larg...

CVE-2026-67222

The messaging and streaming broker RabbitMQ is vulnerable to a Denial of Service (DoS) attack in versions 3.13.0 through 3.13.14 , 4.0.0 through 4.0.19 , 4.1.0 through 4.1.10 , and 4.2.0 through 4.2.5 . The root cause is that the mechanisms/1 function applies list_to_atom/1 to every colon-delimit...

EUVD-2026-87143

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, mechanisms/1 applied listtoatom/1 to every colon-delimited token in an attacker-controlled authmechanism value, permanently consuming Erlang VM atoms and allowing the node to be crashed with a larg...

Memory Allocation with Excessive Size Value

Overview org.apache.qpid:qpid-broker-plugins-amqp-0-8-protocol is an AMQP 0-8, 0-9 and 0-9-1 protocol broker plug-in. Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value due to improper handling of type size and count in the AMQP 0-8/0-9/0-9-1 decoder. ...