{"id":"CVE-2026-58155","title":"Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass.\n\n\n\nThis issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 throug…","summary":"Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass.\n\n\n\nThis issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 throug…","severity":"critical","cvss":9.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","cwe":["CWE-444"],"vendor":"apache","product":"traffic_server","affected":["traffic_server >= 8.0.0, <= 8.1.9","traffic_server >= 9.0.0, < 9.2.15","traffic_server >= 10.0.0, < 10.1.4"],"patched":["traffic_server 10.1.4"],"published":"2026-07-29","updated":"2026-10-01","sourceUpdated":"2026-10-01T17:17:28.570","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-58155","references":[{"url":"https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d","label":"security@apache.org"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-07-29T12:18:55.913684Z"},"epss":0.00537,"epssPercentile":0.43163,"ingestedAt":"2026-10-01T18:55:42.325Z","slug":"CVE-2026-58155","body":"## Overview\n\nApache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass.\n\n\n\nThis issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.\n\n\n\nUsers are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.\n\n## Affected\n\n- `traffic_server >= 8.0.0, <= 8.1.9`\n- `traffic_server >= 9.0.0, < 9.2.15`\n- `traffic_server >= 10.0.0, < 10.1.4`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `traffic_server 10.1.4`","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":51.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}