{"id":"CVE-2021-37150","aliases":["DEBIAN-CVE-2021-37150","DLA-3279-1","DSA-5206-1","EUVD-2021-23724","GHSA-qp2r-xr6f-7jm8","UBUNTU-CVE-2021-37150"],"status":"published","title":"Protocol vs scheme mismatch","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02253,"percentile":0.83048,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2022-08-10T00:00:00Z","modified":"2026-10-24T10:31:04Z","fixes":[{"ecosystem":"Debian:12","package":"trafficserver","fixed_in":["9.1.3+ds-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"trafficserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.1.3+ds-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"trafficserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.2+ds-1+deb10u7"}]}],"versions":["8.0.2+ds-1","8.0.2+ds-1+deb10u1","8.0.2+ds-1+deb10u2","8.0.2+ds-1+deb10u3","8.0.2+ds-1+deb10u4","8.0.2+ds-1+deb10u5","8.0.2+ds-1+deb10u6"],"bundled":4},{"source":"osv","ecosystem":"Debian:11","package":"trafficserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.1.5+ds-1~deb11u1"}]}],"versions":["8.1.1+ds-1.1","8.1.1+ds-1.1+deb11u1"],"bundled":6},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"trafficserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.0-2ubuntu1","5.3.0-2ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"trafficserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.0-5","7.1.2+ds-2","7.1.2+ds-2build1","7.1.2+ds-3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"trafficserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.0.5+ds-1","8.0.5+ds-2","8.0.5+ds-2build1","8.0.5+ds-2ubuntu1","8.0.5+ds-3","8.0.5+ds-3ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"trafficserver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.1.1+ds-1.1","9.1.1+ds-2build1","9.1.1+ds-2ubuntu0.1~esm1","9.1.1+ds-2ubuntu0.1","9.1.1+ds-2ubuntu0.1+esm1"]}],"products":[{"vendor":"apache","product":"traffic_server"},{"vendor":"apache software foundation","product":"apache traffic server"},{"vendor":"debian","product":"debian_linux"},{"vendor":"fedoraproject","product":"fedora"}],"references":[{"url":"https://lists.apache.org/thread/rc64lwbdgrkv674koc3zl1sljr9vwg21","tags":["x_transferred","Mailing List","Vendor Advisory","advisory","report"]},{"url":"https://www.debian.org/security/2022/dsa-5206","tags":["vendor-advisory","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJ67IWD5PRJUOIYIDJRUG3UMS2UF4X4J/","tags":["vendor-advisory","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZCSBQBYPOZSWS5LCOAQ6LJLRLXFIAW5A/","tags":["vendor-advisory","x_transferred","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/01/msg00019.html","tags":["mailing-list","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37150"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJ67IWD5PRJUOIYIDJRUG3UMS2UF4X4J"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZCSBQBYPOZSWS5LCOAQ6LJLRLXFIAW5A"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJ67IWD5PRJUOIYIDJRUG3UMS2UF4X4J"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZCSBQBYPOZSWS5LCOAQ6LJLRLXFIAW5A"},{"url":"https://github.com/advisories/GHSA-qp2r-xr6f-7jm8"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-37150","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-37150","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-37150","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-37150","title":"Protocol vs scheme mismatch","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","status":"published","published":"2022-08-10T00:00:00Z","modified":"2025-09-08T18:45:49.32Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:58.028461Z"}],"euvd":[{"id":"EUVD-2021-23724","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","status":"published","published":"2022-08-10T00:00:00Z","modified":"2025-09-08T18:45:49Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:31:46.000077Z"}],"ghsa":[{"id":"GHSA-qp2r-xr6f-7jm8","title":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an...","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","status":"published","published":"2022-08-11T00:00:20Z","modified":"2025-09-08T21:32:03Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:03:32.10009Z"}],"nvd":[{"id":"CVE-2021-37150","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","status":"published","published":"2022-08-10T06:15:08.287Z","modified":"2026-06-17T04:00:08.79Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:07:06.906968Z"}],"osv":[{"id":"CVE-2021-37150","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","status":"published","published":"2022-08-10T06:15:08.287Z","modified":"2026-10-24T10:31:04.992687017Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:20.434873Z"},{"id":"DEBIAN-CVE-2021-37150","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","status":"published","published":"2022-08-10T06:15:08.287Z","modified":"2026-10-23T18:03:29.827053214Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"UBUNTU-CVE-2021-37150","description":"Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.","status":"published","published":"2022-08-10T06:15:00Z","modified":"2026-04-22T12:58:35.138258Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"},{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:27.870979Z"},{"id":"DLA-3279-1","title":"trafficserver - security update","status":"published","published":"2023-01-23T00:00:00Z","modified":"2026-03-09T01:21:46.38257Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"DSA-5206-1","title":"trafficserver - security update","status":"published","published":"2022-08-12T00:00:00Z","modified":"2026-03-09T02:08:48.263246Z","updated_at":"2026-11-02T15:46:17.543497Z"}]}}