{"id":"CVE-2026-58150","revision":null,"records":[{"revision":"a9dcfe5a3d58444fb1228485e7bb54e5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-58150","aliases":[],"title":"Apache Traffic Server: HTTP/2 requests with Transfer-Encoding are not rejected, allowing request smuggling","description":"Apache Traffic Server does not reject Transfer-Encoding in HTTP/2 requests, allowing downgrade request smuggling.\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.","state":0,"publishedAt":"2026-07-29T07:30:25.8+00:00","modifiedAt":"2026-10-01T16:57:53.079+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\": \"8.0.0\",\n                            \"lessThanOrEqual\": \"8.1.11\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"9.0.0\",\n                            \"lessThanOrEqual\": \"9.2.14\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"10.0.0\",\n                            \"lessThanOrEqual\": \"10.1.3\",\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:C/C:H/I:H/A:N","score":10,"severity":"CRITICAL"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N","score":7.8,"severity":"HIGH"}],"references":["https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-58150","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-58150","identifiers":["CVE-2026-58150"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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