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fkie_cve-2026-66072

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, get_chunk_selector/1 calls binary_to_atom on the raw client-supplied <<"chunk_selector">> property from post-auth subscribe and resolve_offset_spec frames, with no whitelist and no existing guard. An authenticated stream client with read access to any stream can crash the broker node. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol user with read access to at least one stream. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1.

RHSA-2026:67552 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

rabbitmq-server: RabbitMQ: Unsanitized vhost names allow for XSS in management UI rabbitmq: RabbitMQ: Authenticated user can bypass connection limits via stream protocol rabbitmq: RabbitMQ: Information disclosure of decrypted Shovel URIs in debug logs rabbitmq-server: RabbitMQ: Monitoring user can reset authentication attempt counters rabbitmq-server: RabbitMQ: Cross-Origin Resource Sharing (CORS) misconfiguration allows unauthorized actions rabbitmq-server: RabbitMQ: Denial of Service via atom table exhaustion in stream chunk_selector rabbitmq: RabbitMQ: Denial of Service via management API regular expression filter rabbitmq-server: RabbitMQ: Monitoring user can disrupt message flow via authorization flaw rabbitmq: RabbitMQ: Information disclosure via cross-vhost authorization bypass RabbitMQ: RabbitMQ: Account takeover via stored Cross-Site Scripting in TLS peer-certificate DN rabbitmq-server: RabbitMQ: Denial of Service via AMQP 1.0 array32 parsing rabbitmq-server: RabbitMQ: Denial of Service via unbounded super-stream partition allocation rabbitmq-server: RabbitMQ: Privilege escalation via super-stream HTTP creation rabbitmq: RabbitMQ: Denial of Service via unbounded consistent-hash exchange weight rabbitmq-server: RabbitMQ: Denial of Service via JMS topic exchange atom exhaustion rabbitmq: RabbitMQ: Information disclosure of AMQP 1.0 shovel URI passwords rabbitmq: RabbitMQ: Administrator path traversal allows arbitrary file write rabbitmq: RabbitMQ: Denial of Service vi…

UBUNTU-CVE-2026-66072

Affected: Ubuntu:Pro:16.04:LTS: rabbitmq-server, Ubuntu:18.04:LTS: rabbitmq-server, Ubuntu:20.04:LTS: rabbitmq-server, Ubuntu:22.04:LTS: rabbitmq-server, Ubuntu:24.04:LTS: rabbitmq-server, Ubuntu:26.04:LTS: rabbitmq-server