{"affected":[{"product":"rabbitmq-c","source":"CNA: GitHub_M","vendor":"alanxz","versions":[{"status":"affected","version":"< 0.17.0"}]}],"cveId":"CVE-2026-59986","cwes":["CWE-190","CWE-125"],"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.","epss":null,"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-jgjf-7fwf-f3c7"}],"kev":null,"metrics":[{"score":7.4,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}],"modifiedAt":1794328958906,"publishedAt":1794327663810,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-jgjf-7fwf-f3c7"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/alanxz/rabbitmq-c/pull/888"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/alanxz/rabbitmq-c/releases/tag/v0.17.0"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-jgjf-7fwf-f3c7"}],"remediation":[],"revision":"26d38d9b5ff5a454b2b030f99c787a9fb92d61749e15b355ae282971dd6aa177","sources":[{"modifiedAt":1794328958906,"name":"CNA: GitHub_M","retrievedAt":1794330809750,"url":"https://www.cve.org/CVERecord?id=CVE-2026-59986"}],"ssvc":{"assessedAt":1794328933709,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"rabbitmq-c: amqp_decode_bytes size_t integer overflow bypasses bounds check on 32-bit (OOB read)","updatedAt":1794330809750}