{"id":"AZL-105087","summary":"CVE-2026-44236 affecting package librabbitmq 0.14.0-1","details":"rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized connection.tune.frame_max value during amqp_login(), and rabbitmq-c accepts the value in amqp_login_inner() in librabbitmq/amqp_socket.c. amqp_tune_connection() in librabbitmq/amqp_connection.c uses frame_max to reallocate the outbound buffer without enforcing AMQP_FRAME_MIN_SIZE. Immediate serialization of connection.tune-ok through amqp_frame_to_bytes() writes beyond the undersized heap allocation, causing memory corruption and likely denial of service. An on-path attacker can also trigger the flaw against plaintext AMQP traffic. Code execution is theoretically possible but was not demonstrated. This issue is fixed in version 0.16.0.","modified":"2026-10-04T05:31:39Z","published":"2026-09-17T18:16:44Z","upstream":["CVE-2026-44236"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44236"}],"affected":[{"package":{"name":"librabbitmq","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/librabbitmq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.14.0-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105087.json"}}],"schema_version":"1.9.0"}