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trafficserver — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2021-37148

Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.0.1.

Products
trafficserver
Affected versions
Not specified
Fixed versions
9.1.1+ds-1
CVEs
CVE-2021-37148
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 02:01 UTC · Revision 1

Source evidence

DEBIAN-CVE-2021-37148

core-osv · Original source

Published 3 Nov 2021, 16:15 UTC

Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.0.1.

osv:DEBIAN-CVE-2021-37148

trafficserver

Fixed versions: 9.1.1+ds-1

Complete source record
{
  "id": "7e4fbb45f2b6582d586803464b31e9744d32e3f8499c28c602543d30141c8802",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-37148",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2021-37148",
    "summary": "Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.0.1.",
    "evidence": "osv:DEBIAN-CVE-2021-37148",
    "products": [
      {
        "name": {
          "value": "trafficserver",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "9.1.1+ds-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2021-37148",
      "aliases": [
        "DEBIAN-CVE-2021-37148"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9.1.1+ds-1"
                }
              ]
            }
          ],
          "package": {
            "name": "trafficserver",
            "purl": "pkg:deb/debian/trafficserver?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-37148.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:05:22.814409240Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-37148"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2021-37148"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-37148",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 424342,
  "published_at": "2021-11-03T16:15:08.043+00:00"
}