{"schema":"threatline.record/2","record":{"id":"CVE-2025-55702","aliases":[],"summary":"Apache Traffic Server: An unread Expect: 100-continue request body is framed as a new request","details":"When a client sends a POST with Expect: 100-continue and the origin answers before reading the body, Apache Traffic Server parses the unread body left on the client connection as the next request. An attacker behind a front-end proxy that shares connections to Traffic Server can use this to smuggle requests past the front end and desynchronize responses for other users.\n\n\n\nThis issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.\n\n\n\nUsers are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.","categories":["Unclassified"],"product":"Apache Traffic Server","vendor":"Apache Software Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-55702","source_modified_at":"2026-10-23T11:06:22.172Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Apache Traffic Server","vendor":"Apache Software Foundation","versions":[{"status":"affected","version":"8.0.0","lessThanOrEqual":"8.1.11","versionType":"semver"},{"status":"affected","version":"9.0.0","lessThanOrEqual":"9.2.15","versionType":"semver"},{"status":"affected","version":"10.0.0","lessThanOrEqual":"10.1.4","versionType":"semver"},{"status":"affected","version":"10.2.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00253,"percentile":0.15933,"score_date":"2026-10-23"},"published_at":"2026-10-21T18:24:21.377Z","modified_at":"2026-10-23T11:06:22.172Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2025-55702","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T11:06:22.172Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2025-55702","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-22T23:05:04.402377Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-23T11:06:22.172Z","content_hash":"1146861ff5a134b0a701ab24cbaf912f89d262adfff532d9d82c275b8fa38828"}}