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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2021-38161

Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-38161
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 06:14 UTC · Revision 1

Source evidence

CVE-2021-38161

core-osv · Original source

Published 3 Nov 2021, 16:15 UTC

Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.

osv:CVE-2021-38161
Complete source record
{
  "id": "d4ef543776f9f40e0c0566698f546680c876b04bc816bcc2a98719ddd80fc2c4",
  "url": "https://osv.dev/vulnerability/CVE-2021-38161",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-38161",
    "summary": "Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.",
    "evidence": "osv:CVE-2021-38161",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-38161",
      "aliases": [
        "CVE-2021-38161"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/trafficserver",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b310e3566f58dd04ec2b15b111ec86ea70e20019"
                },
                {
                  "last_affected": "a29528dffb8ea1c6fa57fe0c76ca1ec9d0f08694"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0.0"
                      },
                      {
                        "last_affected": "8.0.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "8.0.8-rc0",
            "8.0.8",
            "8.0.7-rc0",
            "8.0.7",
            "8.0.6-rc1",
            "8.0.6",
            "8.0.6-rc0",
            "8.0.5",
            "8.0.4",
            "8.0.4-rc0",
            "8.0.3-rc0",
            "8.0.3",
            "8.0.2-rc0",
            "8.0.2",
            "8.0.1-rc0",
            "8.0.1",
            "8.0.0-rc4",
            "8.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38161.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:37.174629287Z",
      "provider": "osv",
      "references": [
        "https://www.debian.org/security/2022/dsa-5153",
        "https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-38161",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434162,
  "published_at": "2021-11-03T16:15:08.137+00:00"
}