{"id":"CVE-2025-55702","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-55702","generatedAt":"2026-10-28T01:51:10.283Z","title":"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.","description":"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.","published":"2026-10-21T19:16:48.000Z","lastModified":"2026-10-23T12:18:06.000Z","status":"Awaiting Analysis","sourceIdentifier":"security@apache.org","cvss":{"version":"4.0","score":7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-444"],"affected":[],"epss":{"score":0.00325,"percentile":0.25365,"date":"2026-10-26","history":[{"date":"2026-10-22","score":0.00253,"percentile":0.15912}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-21T19:16:48.000Z","detail":{"score":"7.0","severity":"HIGH","publishedAt":"2026-10-21T19:16:48.120Z"},"summary":"New CVE, high severity (CVSS 7.0)."}],"references":[{"url":"https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc","source":"security@apache.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-55702","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}