{"id":"CVE-2026-115417","summary":"Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in aws-c-mqtt","details":"Memory allocation with excessive size value in the MQTT 3.1.1 compatibility adapter in AWS aws-c-mqtt before 0.16.2 might allow a remote actor to cause a denial of service of the client application.\n\n\n\nTo remediate this issue, users should upgrade to aws-c-mqtt 0.16.2 or later, or to an AWS Common Runtime or AWS IoT Device SDK release that bundles it.","aliases":["GHSA-g3x5-86mr-65p5"],"modified":"2026-10-31T18:11:55.518255805Z","published":"2026-10-22T20:34:50.961Z","related":["openSUSE-SU-2026:12357-1"],"database_specific":{"cna_assigner":"AMZN","cwe_ids":["CWE-789"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115417.json"},"references":[{"type":"ADVISORY","url":"https://aws.amazon.com/security/security-bulletins/2026-147-aws/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115417.json"},{"type":"ADVISORY","url":"https://github.com/awslabs/aws-c-mqtt/security/advisories/GHSA-g3x5-86mr-65p5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115417"},{"type":"FIX","url":"https://github.com/awslabs/aws-c-mqtt/releases/tag/v0.16.2"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/awslabs/aws-c-mqtt","events":[{"introduced":"f09d932f9f53a29a0eb77c33a883f33894c5abb0"},{"fixed":"95739b3f34830e9e32a392b783994df5279387d9"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0.9.1"},{"fixed":"0.16.2"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"},{"range":[{"fixed":"95739b3f34830e9e32a392b783994df5279387d9"}],"source":"REFERENCES_TAG","original_tag":"v0.16.2"},{"range":[{"introduced":"0"},{"fixed":"0.16.2"}],"source":"DESCRIPTION"}]}}],"versions":["v0.16.1","v0.16.0","v0.15.2","v0.15.1","v0.15.0","v0.14.0","v0.13.5","v0.13.4","v0.13.3","v0.13.2","v0.13.1","v0.13.0","v0.12.3","v0.12.2","v0.12.1","v0.12.0","v0.11.0","v0.10.7","v0.10.6","v0.10.5","v0.10.4","v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.10","v0.9.9","v0.9.8","v0.9.7","v0.9.6","v0.9.5","v0.9.4","v0.9.3","v0.9.2","v0.9.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-115417.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}