{"id":"CVE-2026-111810","revision":"2a88f6bf18fd47f4b6d15d510ab297cf","records":[{"revision":"2a88f6bf18fd47f4b6d15d510ab297cf","observedAt":"2026-10-23T22:48:20.692+00:00","statement":{"source":"cve-program","id":"CVE-2026-111810","aliases":[],"title":"Apache Traffic Server: Unthrottled per-header diagnostic logging enables a log-flood denial of service","description":"Apache Traffic Server 9.2.15, 10.1.4 and 10.2.0 write one unthrottled diagnostic log line for every internal @ header they strip, so a request carrying many such headers makes the proxy write far more log data than the request contains.\n\n\n\nThis issue affects Apache Traffic Server: 9.2.15, 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.","state":0,"publishedAt":"2026-10-21T19:14:50.479+00:00","modifiedAt":"2026-10-23T21:21:35.176+00:00","affected":[{"ecosystem":"Vendor product","name":"Apache Traffic Server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Apache Software Foundation\",\n                    \"product\": \"Apache Traffic Server\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.2.15\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"10.1.4\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"10.2.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"}],"references":["https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111810","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111810","identifiers":["CVE-2026-111810"]},"retained":false,"historicalAffected":[]}],"coverage":[]}