{"id":"CVE-2026-50273","revision":"0aaceb718ccc4f7399a6046d2fbcc933","records":[{"revision":"0aaceb718ccc4f7399a6046d2fbcc933","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-50273","aliases":[],"title":"Datadog .NET Tracer: Improper parsing of W3C baggage headers may lead to DoS","description":"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.","state":0,"publishedAt":"2026-07-17T18:01:14.533+00:00","modifiedAt":"2026-07-17T19:46:45.397+00:00","affected":[{"ecosystem":"Vendor product","name":"dd-trace-dotnet","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"DataDog\",\n                    \"product\": \"dd-trace-dotnet\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.43.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/DataDog/dd-trace-dotnet/security/advisories/GHSA-38wr-vpc7-2mp4","https://github.com/DataDog/dd-trace-dotnet/pull/8555","https://github.com/DataDog/dd-trace-dotnet/commit/38092e0d41a36decbe649e048e48ae1b1607292f","https://github.com/DataDog/dd-trace-dotnet/releases/tag/v3.43.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-50273","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-50273","identifiers":["CVE-2026-50273"]},"retained":false,"historicalAffected":[]}],"coverage":[]}