{"id":"CVE-2026-22261","summary":"Suricata eve/alert: http1 xff handling can lead to denial of service","details":"Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, various inefficiencies in xff handling, especially for alerts not triggered in a tx, can lead to severe slowdowns. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, disable XFF support in the eve configuration. The setting is disabled by default.","aliases":["GHSA-5jvg-5j3p-34cf"],"modified":"2026-08-12T03:51:26.319388375Z","published":"2026-01-27T18:10:27.881Z","related":["openSUSE-SU-2026:10082-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22261.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-1050"]},"references":[{"type":"WEB","url":"https://redmine.openinfosecfoundation.org/issues/8156"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22261.json"},{"type":"ADVISORY","url":"https://github.com/OISF/suricata/security/advisories/GHSA-5jvg-5j3p-34cf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22261"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/3f0725b34c7871c2de4346c8af872f10f4501e44"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/af246ae7ab1b70c09f83c0619b253095ccc18667"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"0"},{"fixed":"163bd652dfa92959e918a952429b939fa81f7b88"},{"introduced":"9956286fb89f9cad9e9f95b99dc751f8666617b7"},{"fixed":"3bd9f773bdc65d7bede2f0576790a68fb68b7476"},{"fixed":"3f0725b34c7871c2de4346c8af872f10f4501e44"},{"fixed":"af246ae7ab1b70c09f83c0619b253095ccc18667"}],"database_specific":{"cpe":"cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"7.0.14"},{"introduced":"8.0.0"},{"fixed":"8.0.3"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["suricata-8.0.2","suricata-7.0.13","suricata-7.0.12","suricata-8.0.1","suricata-8.0.0","suricata-7.0.11","suricata-7.0.10","suricata-7.0.9","suricata-7.0.8","suricata-7.0.7","suricata-7.0.6","suricata-7.0.5","suricata-7.0.4","suricata-7.0.3","suricata-7.0.2","suricata-7.0.1","suricata-7.0.0","suricata-7.0.0-rc2","suricata-7.0.0-rc1","suricata-7.0.0-beta1","suricata-6.0.1","suricata-6.0.0","suricata-6.0.0-rc1","suricata-6.0.0-beta1","suricata-5.0.1","suricata-5.0.0","suricata-5.0.0-rc1","suricata-5.0.0-beta1","suricata-4.1.2","suricata-4.1.1","suricata-4.1.0","suricata-4.1.0-rc2","suricata-4.1.0-rc1","suricata-4.1.0-beta1","suricata-4.0.1","suricata-4.0.0","suricata-4.0.0-rc2","suricata-4.0.0-rc1","suricata-4.0.0-beta1","suricata-3.2.1","suricata-3.2","suricata-3.2RC1","suricata-3.2beta1","suricata-3.1.2","suricata-3.1.1","suricata-3.1","suricata-3.0.1","suricata-3.1RC1","suricata-3.0.1RC1","suricata-3.0","suricata-3.0RC3","suricata-3.0RC2","suricata-3.0RC1","suricata-2.1beta4","suricata-2.1beta3","suricata-2.1beta2","suricata-2.1beta1","suricata-2.0.2","suricata-2.0.1","suricata-2.0.1rc1","suricata-2.0","suricata-2.0rc3","suricata-2.0rc2","suricata-2.0rc1","suricata-2.0beta2","suricata-2.0beta1","suricata-1.4","suricata-1.4rc1","suricata-1.4beta3","suricata-1.4beta2","suricata-1.4beta1","suricata-1.3.1","suricata-1.3","suricata-1.3rc1","suricata-1.3beta2","suricata-1.3beta1","suricata-1.2.1","suricata-1.2","suricata-1.2rc1","suricata-1.2beta1","suricata-1.1","suricata-1.1rc1","suricata-1.1beta3","suricata-1.1beta2","suricata-1.1beta1","suricata-1.0.2","suricata-1.0.1","suricata-1.0.0","suricata-0.8.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22261.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}