{"id":"CVE-2026-22259","state":"PUBLISHED","title":"Suricata dnp3: unbounded transaction growth","description":"Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default).","publishedAt":"2026-01-27T17:13:11.057Z","updatedAt":"2026-01-27T18:16:55.422Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OISF suricata"],"affected":[{"vendor":"OISF","product":"suricata","versions":[{"version":"< 7.0.14","status":"affected"},{"version":">= 8.0.0, < 8.0.3","status":"affected"}]}],"references":["https://github.com/OISF/suricata/security/advisories/GHSA-878h-2x6v-84q9","https://github.com/OISF/suricata/commit/50cac2e2465ca211eabfa156623e585e9037bb7e","https://github.com/OISF/suricata/commit/63225d5f8ef64cc65164c0bb1800730842d54942","https://redmine.openinfosecfoundation.org/issues/8181"],"weaknesses":["CWE-400","CWE-770"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22259.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22259","state":"PUBLISHED","datePublished":"2026-01-27T17:13:11.057Z","dateUpdated":"2026-01-27T18:16:55.422Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-07T05:19:12.922Z"},"containers":{"cna":{"title":"Suricata dnp3: unbounded transaction growth","descriptions":[{"lang":"en","value":"Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain a patch. As a workaround, disable the DNP3 parser in the suricata yaml (disabled by default)."}],"affected":[{"vendor":"OISF","product":"suricata","versions":[{"version":"< 7.0.14","status":"affected"},{"version":">= 8.0.0, < 8.0.3","status":"affected"}]}],"references":[{"url":"https://github.com/OISF/suricata/security/advisories/GHSA-878h-2x6v-84q9","name":"https://github.com/OISF/suricata/security/advisories/GHSA-878h-2x6v-84q9","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/OISF/suricata/commit/50cac2e2465ca211eabfa156623e585e9037bb7e","name":"https://github.com/OISF/suricata/commit/50cac2e2465ca211eabfa156623e585e9037bb7e","tags":["x_refsource_MISC"]},{"url":"https://github.com/OISF/suricata/commit/63225d5f8ef64cc65164c0bb1800730842d54942","name":"https://github.com/OISF/suricata/commit/63225d5f8ef64cc65164c0bb1800730842d54942","tags":["x_refsource_MISC"]},{"url":"https://redmine.openinfosecfoundation.org/issues/8181","name":"https://redmine.openinfosecfoundation.org/issues/8181","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-01-27T17:13:11.057Z"},"source":{"advisory":"GHSA-878h-2x6v-84q9","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-27T18:16:20.937010Z","id":"CVE-2026-22259","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-27T18:16:55.422Z"}}]}}}