{"id":"CVE-2026-59986","published":"2026-11-10T17:17:45.043","lastModified":"2026-11-10T17:17:45.043","description":"rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to version 0.17.0, the bounds check (*offset = o + len) <= encoded.len overflows when o + len > SIZE_MAX on 32-bit systems. len is a uint32_t read from the AMQP wire as a BYTES/UTF8 field length. The overflow wraps the check to a small value that passes, producing a decoded amqp_bytes_t with a multi-GB .len pointing into a small frame buffer. This results in an out-of-bounds read of up to ~4GB of process memory on 32-bit systems (ARM, MIPS, x86 ILP32, embedded IoT AMQP clients). Enabling information disclosure or denial of service. Not exploitable on 64-bit systems where size_t is 64-bit. This issue has been patched in version 0.17.0.","cvssScore":7.4,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","cwes":["CWE-125","CWE-190"],"vendors":[],"products":[],"references":[{"url":"https://github.com/alanxz/rabbitmq-c/pull/888","tags":[]},{"url":"https://github.com/alanxz/rabbitmq-c/releases/tag/v0.17.0","tags":[]},{"url":"https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-jgjf-7fwf-f3c7","tags":[]},{"url":"https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-jgjf-7fwf-f3c7","tags":[]}],"exploitRefs":[{"url":"https://github.com/alanxz/rabbitmq-c/pull/888","tags":[]},{"url":"https://github.com/alanxz/rabbitmq-c/releases/tag/v0.17.0","tags":[]},{"url":"https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-jgjf-7fwf-f3c7","tags":[]},{"url":"https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-jgjf-7fwf-f3c7","tags":[]}],"hasPoc":true,"ai":null}