{"id":"CVE-2026-57224","published":"2026-09-18T20:17:17.780","lastModified":"2026-09-23T18:12:04.247","description":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::for_direction(), so a sensor that observes only one direction cannot mark the unseen direction inspected or free completed transactions. The RDP parser in rust/src/rdp/rdp.rs has the same direction-state defect. The per-flow transaction list can grow without bound and cleanup repeatedly scans it, causing increasing CPU and memory consumption and eventual denial of service. This issue is fixed in version 8.0.6.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-400","CWE-770"],"vendors":[],"products":[],"references":[{"url":"https://github.com/OISF/suricata/commit/3f86c56c800392ede5cfaf7a944a431fd8445c55","tags":[]},{"url":"https://github.com/OISF/suricata/commit/5af13e3eb06be0387da8703b611c5ce932245c59","tags":[]},{"url":"https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1","tags":[]},{"url":"https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144","tags":[]},{"url":"https://github.com/OISF/suricata/pull/15740","tags":[]},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","tags":[]},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7m","tags":[]},{"url":"https://redmine.openinfosecfoundation.org/issues/8621","tags":[]}],"exploitRefs":[{"url":"https://github.com/OISF/suricata/commit/3f86c56c800392ede5cfaf7a944a431fd8445c55","tags":[]},{"url":"https://github.com/OISF/suricata/commit/5af13e3eb06be0387da8703b611c5ce932245c59","tags":[]},{"url":"https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1","tags":[]},{"url":"https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144","tags":[]},{"url":"https://github.com/OISF/suricata/pull/15740","tags":[]},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","tags":[]},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7m","tags":[]}],"hasPoc":true,"ai":null}