{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-50275","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-04T16:26:05.984Z","datePublished":"2026-09-17T20:04:26.605Z","dateUpdated":"2026-09-18T20:08:45.062Z"},"containers":{"cna":{"title":"Datadog PHP Tracer: Improper parsing of W3C baggage headers may lead to DoS","problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"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"}}],"references":[{"name":"https://github.com/DataDog/dd-trace-php/security/advisories/GHSA-phwx-ww2p-cv9v","tags":["x_refsource_CONFIRM"],"url":"https://github.com/DataDog/dd-trace-php/security/advisories/GHSA-phwx-ww2p-cv9v"},{"name":"https://github.com/DataDog/dd-trace-php/pull/3854","tags":["x_refsource_MISC"],"url":"https://github.com/DataDog/dd-trace-php/pull/3854"},{"name":"https://github.com/DataDog/dd-trace-php/commit/2f7987eb02e306bb62bce8ec4152dece68112f51","tags":["x_refsource_MISC"],"url":"https://github.com/DataDog/dd-trace-php/commit/2f7987eb02e306bb62bce8ec4152dece68112f51"},{"name":"https://github.com/DataDog/dd-trace-php/commit/43072ccafe55a5dbdfba75a42bf316b4150ae1e5","tags":["x_refsource_MISC"],"url":"https://github.com/DataDog/dd-trace-php/commit/43072ccafe55a5dbdfba75a42bf316b4150ae1e5"},{"name":"https://github.com/DataDog/dd-trace-php/releases/tag/1.19.2","tags":["x_refsource_MISC"],"url":"https://github.com/DataDog/dd-trace-php/releases/tag/1.19.2"},{"name":"https://github.com/DataDog/dd-trace-php/releases/tag/1.20.0","tags":["x_refsource_MISC"],"url":"https://github.com/DataDog/dd-trace-php/releases/tag/1.20.0"}],"affected":[{"vendor":"DataDog","product":"dd-trace-php","versions":[{"version":"< 1.19.2","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-17T20:04:26.605Z"},"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."}],"source":{"advisory":"GHSA-phwx-ww2p-cv9v","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T20:08:34.736084Z","id":"CVE-2026-50275","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-18T20:08:45.062Z"}}]}}