{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-50277", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-04T16:26:05.985Z", "datePublished": "2026-09-17T20:16:37.230Z", "dateUpdated": "2026-09-17T20:16:37.230Z"}, "containers": {"cna": {"title": "dd-trace-cpp: 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-cpp/security/advisories/GHSA-ch7h-phmx-rqwq", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/DataDog/dd-trace-cpp/security/advisories/GHSA-ch7h-phmx-rqwq"}, {"name": "https://github.com/DataDog/dd-trace-cpp/pull/313", "tags": ["x_refsource_MISC"], "url": "https://github.com/DataDog/dd-trace-cpp/pull/313"}, {"name": "https://github.com/DataDog/dd-trace-cpp/commit/422dc91bb93e358e3977381275d311f3f926d666", "tags": ["x_refsource_MISC"], "url": "https://github.com/DataDog/dd-trace-cpp/commit/422dc91bb93e358e3977381275d311f3f926d666"}, {"name": "https://github.com/DataDog/dd-trace-cpp/releases/tag/v2.1.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/DataDog/dd-trace-cpp/releases/tag/v2.1.0"}], "affected": [{"vendor": "DataDog", "product": "dd-trace-cpp", "versions": [{"version": "< 2.1.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-17T20:16:37.230Z"}, "descriptions": [{"lang": "en", "value": "dd-trace-cpp is the Datadog distributed tracing library for C++. Prior to 2.1.0, dd-trace-cpp parses incoming W3C baggage headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES on the extraction path, even though those limits are enforced during injection. A remote unauthenticated attacker can send a header containing many comma-separated key-value pairs or one very large value, causing per-request hash-map allocation and unbounded CPU and memory consumption. Baggage extraction is enabled by default in most affected tracers unless baggage is removed from DD_TRACE_PROPAGATION_STYLE or DD_TRACE_PROPAGATION_STYLE_EXTRACT, so affected internet-facing services can be denied service. This issue is fixed in version 2.1.0."}], "source": {"advisory": "GHSA-ch7h-phmx-rqwq", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "dd-trace-cpp", "vendor": "DataDog", "versions": [{"status": "affected", "version": "< 2.1.0"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "dd-trace-cpp is the Datadog distributed tracing library for C++. Prior to 2.1.0, dd-trace-cpp parses incoming W3C baggage headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES on the extraction path, even though those limits are enforced during injection. A remote unauthenticated attacker can send a header containing many comma-separated key-value pairs or one very large value, causing per-request hash-map allocation and unbounded CPU and memory consumption. Baggage extraction is enabled by default in most affected tracers unless baggage is removed from DD_TRACE_PROPAGATION_STYLE or DD_TRACE_PROPAGATION_STYLE_EXTRACT, so affected internet-facing services can be denied service. This issue is fixed in version 2.1.0."}], "id": "CVE-2026-50277", "lastModified": "2026-09-17T21:17:14.243", "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": "[email protected]", "type": "Secondary"}]}, "published": "2026-09-17T21:17:14.243", "references": [{"source": "[email protected]", "url": "https://github.com/DataDog/dd-trace-cpp/commit/422dc91bb93e358e3977381275d311f3f926d666"}, {"source": "[email protected]", "url": "https://github.com/DataDog/dd-trace-cpp/pull/313"}, {"source": "[email protected]", "url": "https://github.com/DataDog/dd-trace-cpp/releases/tag/v2.1.0"}, {"source": "[email protected]", "url": "https://github.com/DataDog/dd-trace-cpp/security/advisories/GHSA-ch7h-phmx-rqwq"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "[email protected]", "type": "Primary"}]}

{}

{}