{"id":"CVE-2026-63451","summary":"Suricata detect: frame rules without content and with transform can cause heap buffer overflow during rule load","details":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, a locally supplied detection rule that combines frame inspection without content and a transformed match without content can make src/detect-engine-prefilter.c select multiple non-prefilter frame engines while preparing signatures for non-prefilter inspection. Loading the crafted rule, including in test mode, can trigger a heap buffer overflow and crash Suricata; network traffic alone cannot reach the flaw. This issue is fixed in version 8.0.6.","aliases":["GHSA-6qwq-j83r-qp34"],"modified":"2026-09-19T11:45:33.226330454Z","published":"2026-09-18T20:15:52.512Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-122"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63451.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63451.json"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/5449ae170bfce213907d9bab87143a59774ed48f"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/d62acf5d75a61b76b16815e773408852f41b1975"},{"type":"FIX","url":"https://github.com/OISF/suricata/pull/15807"},{"type":"WEB","url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"},{"type":"ADVISORY","url":"https://github.com/OISF/suricata/security/advisories/GHSA-6qwq-j83r-qp34"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63451"},{"type":"WEB","url":"https://redmine.openinfosecfoundation.org/issues/8590"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"9956286fb89f9cad9e9f95b99dc751f8666617b7"},{"fixed":"4c28cc1b4ac64f48efdca6ce3e09748227a04a7e"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"8.0.0"},{"fixed":"8.0.6"}]}}],"versions":["suricata-8.0.5","suricata-8.0.4","suricata-8.0.3","suricata-8.0.2","suricata-8.0.1","suricata-8.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63451.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}