{"id":"CVE-2026-33267","summary":"Apache Traffic Server: Untrusted @ headers can spoof ATS internal metadata","details":"Improper Input Validation vulnerability in Apache Traffic Server.\n\nThis issue affects Apache Traffic Server: from 9.2.0 through 9.2.14, from 10.1.0 through 10.1.3.\n\nUsers are recommended to upgrade to version 9.2.15 or 10.1.4, which fixes the issue.","modified":"2026-08-07T03:45:29.030663806Z","published":"2026-07-29T07:21:52.256Z","database_specific":{"unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"9.2.0"},{"last_affected":"9.2.14"},{"introduced":"10.1.0"},{"last_affected":"10.1.3"}]},{"extracted_events":[{"introduced":"9.2.0"},{"fixed":"9.2.14"},{"introduced":"10.1.0"},{"fixed":"10.1.3"}],"source":"DESCRIPTION"}],"cna_assigner":"apache","cwe_ids":["CWE-20"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33267.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33267.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33267"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/trafficserver","events":[{"introduced":"0"},{"fixed":"f671e525110be50452f607fc1f2657f3dba7fe3b"},{"introduced":"3fa146678bc6a061722f4ea930998ae29ad70de3"},{"fixed":"f8be6725daee427fbf88f166f14b10cb5525b220"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"9.2.0"},{"fixed":"9.2.15"},{"introduced":"10.0.0"},{"fixed":"10.1.4"}]}}],"versions":["10.1.3-rc0","10.1.3","9.2.14-rc0","9.2.14","9.2.13-rc0","9.2.13","10.1.2-rc0","10.1.2","9.2.12-rc0","9.2.12","10.1.1-rc1","10.1.1","10.1.1-rc0","10.1.0-rc1","10.1.0","10.1.0-rc0","9.2.11-rc0","9.2.11","9.2.10-rc0","9.2.10","9.2.9-rc0","9.2.9","9.2.8-rc0","9.2.8","9.2.7-rc0","9.2.7","9.2.6-rc0","9.2.6","9.2.5-rc0","9.2.4-rc0","9.2.4","9.2.3-rc0","9.2.3","9.2.2-rc0","9.2.2","9.2.1-rc0","9.2.1","9.2.0-rc0","3.3.1","3.3.0","3.1.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33267.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N"}]}