FKIE_CVE-2026-50275

Vulnerability from fkie_nvd - Published: 2026-09-17 21:17 - Updated: 2026-09-23 18:12
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
The Datadog PHP Tracer provides application performance monitoring and distributed tracing for PHP. Prior to 1.19.2, ddtrace_deserialize_baggage in ext/distributed_tracing_headers.c parses incoming W3C baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES. A remote unauthenticated client can send an arbitrarily large number of comma-separated key-value pairs or a single oversized value, causing the tracer to allocate hash-map entries and consume unbounded CPU and memory on each request. Baggage extraction is enabled by default in most affected deployments unless baggage is removed from DD_TRACE_PROPAGATION_STYLE or DD_TRACE_PROPAGATION_STYLE_EXTRACT. This issue is fixed in version 1.19.2.
References
security-advisories@github.comhttps://github.com/DataDog/dd-trace-php/commit/2f7987eb02e306bb62bce8ec4152dece68112f51
security-advisories@github.comhttps://github.com/DataDog/dd-trace-php/commit/43072ccafe55a5dbdfba75a42bf316b4150ae1e5
security-advisories@github.comhttps://github.com/DataDog/dd-trace-php/pull/3854
security-advisories@github.comhttps://github.com/DataDog/dd-trace-php/releases/tag/1.19.2
security-advisories@github.comhttps://github.com/DataDog/dd-trace-php/releases/tag/1.20.0
security-advisories@github.comhttps://github.com/DataDog/dd-trace-php/security/advisories/GHSA-phwx-ww2p-cv9v
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "dd-trace-php",
          "vendor": "DataDog",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.19.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Datadog PHP Tracer provides application performance monitoring and distributed tracing for PHP. Prior to 1.19.2, ddtrace_deserialize_baggage in ext/distributed_tracing_headers.c parses incoming W3C baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES. A remote unauthenticated client can send an arbitrarily large number of comma-separated key-value pairs or a single oversized value, causing the tracer to allocate hash-map entries and consume unbounded CPU and memory on each request. Baggage extraction is enabled by default in most affected deployments unless baggage is removed from DD_TRACE_PROPAGATION_STYLE or DD_TRACE_PROPAGATION_STYLE_EXTRACT. This issue is fixed in version 1.19.2."
    }
  ],
  "id": "CVE-2026-50275",
  "lastModified": "2026-09-23T18:12:04.247",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-50275",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-18T20:08:34.736084Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-17T21:17:14.073",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/DataDog/dd-trace-php/commit/2f7987eb02e306bb62bce8ec4152dece68112f51"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/DataDog/dd-trace-php/commit/43072ccafe55a5dbdfba75a42bf316b4150ae1e5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/DataDog/dd-trace-php/pull/3854"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/DataDog/dd-trace-php/releases/tag/1.19.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/DataDog/dd-trace-php/releases/tag/1.20.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/DataDog/dd-trace-php/security/advisories/GHSA-phwx-ww2p-cv9v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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