{"id":"CVE-2026-57224","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-57224","generatedAt":"2026-10-28T01:00:58.493Z","title":"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.","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.","published":"2026-09-18T20:17:18.000Z","lastModified":"2026-09-28T18:36:45.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400","CWE-770"],"affected":["oisf/suricata"],"epss":{"score":0.00408,"percentile":0.34852,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/OISF/suricata/commit/3f86c56c800392ede5cfaf7a944a431fd8445c55","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/commit/5af13e3eb06be0387da8703b611c5ce932245c59","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/pull/15740","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/releases/tag/suricata-8.0.6","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7m","tags":["Mitigation","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://redmine.openinfosecfoundation.org/issues/8621","tags":["Permissions Required"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57224","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}