CVE-2026-50271 (GCVE-0-2026-50271)

Vulnerability from cvelistv5 – Published: 2026-07-17 20:42 – Updated: 2026-07-17 20:42
VLAI
Title
dd-trace-py: Improper parsing of W3C baggage headers may lead to DoS
Summary
Datadog dd-trace-py is the Datadog Python APM client. Prior to 4.8.2, 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 limits on the extract path. A remote, unauthenticated attacker can send a request whose baggage header contains an arbitrarily large number of comma-separated key-value pairs or a single very large value, causing unbounded CPU and memory consumption and enabling a remote denial of service against HTTP services with baggage propagation enabled. This issue is fixed in version 4.8.2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
DataDog dd-trace-py Affected: < 4.8.2
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        }
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        "dateUpdated": "2026-07-17T20:42:34.036Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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          "tags": [
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          "name": "https://github.com/DataDog/dd-trace-py/releases/tag/v4.8.2",
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          "url": "https://github.com/DataDog/dd-trace-py/releases/tag/v4.8.2"
        }
      ],
      "source": {
        "advisory": "GHSA-mw54-j2v2-42hr",
        "discovery": "UNKNOWN"
      },
      "title": "dd-trace-py: Improper parsing of W3C baggage headers may lead to DoS"
    }
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    "datePublished": "2026-07-17T20:42:34.036Z",
    "dateReserved": "2026-06-04T16:26:05.984Z",
    "dateUpdated": "2026-07-17T20:42:34.036Z",
    "state": "PUBLISHED"
  },
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  }
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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