{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.43.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "38092e0d41a36decbe649e048e48ae1b1607292f"
            }
          ],
          "repo": "https://github.com/datadog/dd-trace-dotnet",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-38wr-vpc7-2mp4"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50273.json"
  },
  "details": "Datadog .NET Tracer is a client library for Datadog APM for .NET applications. Prior to 3.43.0, Datadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES on extraction, allowing a remote unauthenticated attacker to send a baggage header with many comma-separated key-value pairs or one very large value and cause unbounded CPU and memory consumption in services with baggage propagation enabled. This issue is fixed in version 3.43.0.",
  "id": "CVE-2026-50273",
  "modified": "2026-07-19T03:31:12.611083531Z",
  "published": "2026-07-17T18:01:14.533Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/DataDog/dd-trace-dotnet/releases/tag/v3.43.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50273.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/DataDog/dd-trace-dotnet/security/advisories/GHSA-38wr-vpc7-2mp4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50273"
    },
    {
      "type": "FIX",
      "url": "https://github.com/DataDog/dd-trace-dotnet/commit/38092e0d41a36decbe649e048e48ae1b1607292f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/DataDog/dd-trace-dotnet/pull/8555"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Datadog .NET Tracer: Improper parsing of W3C baggage headers may lead to DoS"
}