{"schema":"threatline.record/2","record":{"id":"CVE-2026-110354","aliases":[],"summary":"HAProxy 3 before 3.4.6 allows a remote unauthenticated attacker to cause a denial of service (persistent worker-thread CPU exhaustion) via an HTTP/1.1 chunked request. Although the H1 multiplexer drai","details":"HAProxy 3 before 3.4.6 allows a remote unauthenticated attacker to cause a denial of service (persistent worker-thread CPU exhaustion) via an HTTP/1.1 chunked request. Although the H1 multiplexer drains the request before closing the stream, the parser repeatedly re-processes the same bytes without making progress. The affected thread stays busy at 100% CPU after timeouts expire and after the client disconnects, and repeated requests can consume all worker threads until the process is restarted.","categories":["Unclassified"],"product":"HAProxy","vendor":"HAProxy","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110354","source_modified_at":"2026-10-22T19:10:34.563Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"HAProxy","vendor":"HAProxy","versions":[{"lessThan":"3.0.30","status":"affected","version":"3.0.0","versionType":"custom"},{"lessThan":"3.2.26","status":"affected","version":"3.2.0","versionType":"custom"},{"lessThan":"3.3.17","status":"affected","version":"3.3.0","versionType":"custom"},{"lessThan":"3.4.6","status":"affected","version":"3.4.0","versionType":"custom"},{"lessThan":"3.5-dev9","status":"affected","version":"3.5-dev","versionType":"custom"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110354","source_modified_at":"2026-10-22T19:10:34.563Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"HAProxy Enterprise Edition","vendor":"HAProxy","versions":[{"lessThan":"3.0r1-362.1441","status":"affected","version":"3.0r1","versionType":"custom"},{"lessThan":"3.2r1-378.1259","status":"affected","version":"3.2r1","versionType":"custom"},{"lessThan":"3.3r1-377.1005","status":"affected","version":"3.3r1","versionType":"custom"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110354","source_modified_at":"2026-10-22T19:10:34.563Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"HAProxy Kubernetes Ingress Controller","vendor":"HAProxy Technologies","versions":[{"lessThan":"3.2.17","status":"affected","version":"3.2.0","versionType":"custom"}],"defaultStatus":"unaffected"},{"source":"CVE 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