{"id":"CVE-2026-94083","details":"Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade). This requires app-layer.protocols.doh2 to be enabled, which is the default in 8.x versions.","modified":"2026-10-28T11:00:56.442896401Z","published":"2026-09-20T01:18:05.744Z","database_specific":{"cwe_ids":["CWE-843"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94083.json","cna_assigner":"mitre"},"references":[{"type":"WEB","url":"https://forum.suricata.io/t/suricata-8-0-7-released/6467"},{"type":"WEB","url":"https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94083.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94083"},{"type":"FIX","url":"https://github.com/OISF/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"9956286fb89f9cad9e9f95b99dc751f8666617b7"},{"fixed":"d681600f3648030a67f7d618d30742bfd5fe7169"},{"fixed":"e574009add9c208f319e1d9d15b3bb1229c88074"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"8.0.0"},{"fixed":"8.0.7"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"e574009add9c208f319e1d9d15b3bb1229c88074"}]}]}}],"versions":["suricata-8.0.6","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-2026-94083.json","vanir_signatures":[{"target":{"file":"src/app-layer-detect-proto.c","function":"SCAppLayerForceProtocolChange"},"deprecated":false,"digest":{"function_hash":"123519611658542791217793185903839003325","length":239},"id":"CVE-2026-94083-4cc97692","signature_type":"Function","signature_version":"v1","source":"https://github.com/oisf/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074"},{"deprecated":false,"digest":{"line_hashes":["250086765895846327303636932126027199299","337445062926693632600607215038655352437","35158876069092158881779293132592683589","215952981750927905935910573082934023595"],"threshold":0.9},"id":"CVE-2026-94083-ea129a13","signature_type":"Line","signature_version":"v1","source":"https://github.com/oisf/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074","target":{"file":"src/app-layer-detect-proto.c"}}],"vanir_signatures_modified":"2026-10-28T11:00:56Z"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L"}]}