{"id":"CVE-2026-50272","revision":null,"records":[{"revision":"67c4e061990d48e88ebe3e36c5f785e6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-50272","aliases":[],"title":"dd-trace: Improper parsing of W3C baggage headers may lead to DoS","description":"dd-trace is the Datadog APM client for Node.js. Prior to 5.100.0, W3C baggage propagation in packages/dd-trace/src/baggage.js and packages/dd-trace/src/opentracing/propagation/text_map.js parsed incoming baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES on extraction. 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 any HTTP service with baggage propagation enabled. This issue is fixed in version 5.100.0.","state":0,"publishedAt":"2026-07-17T20:28:21.25+00:00","modifiedAt":"2026-07-21T02:19:01.666+00:00","affected":[{"ecosystem":"Vendor product","name":"dd-trace-js","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"DataDog\",\n                    \"product\": \"dd-trace-js\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 5.100.0\",\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-js/security/advisories/GHSA-wxqq-gcq8-c443","https://github.com/DataDog/dd-trace-js/pull/8255","https://github.com/DataDog/dd-trace-js/commit/a7d4c0da05f67cde05a99272b725a317c461d0e6","https://github.com/DataDog/dd-trace-js/releases/tag/v5.100.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-50272","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-50272","identifiers":["CVE-2026-50272"]},"retained":false,"historicalAffected":[]},{"revision":"caab17a9d7244c0c9628512f19951434","observedAt":"2026-10-25T12:17:38.331+00:00","statement":{"source":"nvd","id":"CVE-2026-50272","aliases":[],"title":"dd-trace is the Datadog APM client for Node.js. Prior to 5.100.0, W3C baggage propagation in packages/dd-trace/src/baggage.js and packages/dd-trace/src/opentracing/propagation/text_map.js parsed incoming baggage HTTP headers without enforci…","description":"dd-trace is the Datadog APM client for Node.js. Prior to 5.100.0, W3C baggage propagation in packages/dd-trace/src/baggage.js and packages/dd-trace/src/opentracing/propagation/text_map.js parsed incoming baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES on extraction. 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 any HTTP service with baggage propagation enabled. This issue is fixed in version 5.100.0.","state":0,"publishedAt":"2026-07-17T21:17:07.2+00:00","modifiedAt":"2026-10-24T20:10:00.137+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","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-js/commit/a7d4c0da05f67cde05a99272b725a317c461d0e6","https://github.com/DataDog/dd-trace-js/pull/8255","https://github.com/DataDog/dd-trace-js/releases/tag/v5.100.0","https://github.com/DataDog/dd-trace-js/security/advisories/GHSA-wxqq-gcq8-c443"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-50272","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-770"],"productCriteria":[],"sourceDates":{"published":"2026-07-17T21:17:07.200","lastModified":"2026-10-24T20:10:00.137"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-50272","identifiers":["CVE-2026-50272"]},"retained":false,"historicalAffected":[]},{"revision":"cb9740a040fe40458c5e1c934ae0ed11","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-wxqq-gcq8-c443","aliases":["CVE-2026-50272"],"title":"dd-trace-js: Improper parsing of W3C baggage headers may lead to DoS","description":"### Impact\nDatadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing item-count or byte-size limits on the extract path. The DD_TRACE_BAGGAGE_MAX_ITEMS (default 64) and DD_TRACE_BAGGAGE_MAX_BYTES (default 8192) limits were applied only to baggage injection, not extraction. 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). The tracer allocates a hash-map entry for each pair on every request, causing unbounded CPU and memory consumption and enabling a remote Denial of Service against any HTTP service that has the baggage propagation style enabled.\nThe baggage propagation style is enabled by default in most affected tracers, so any internet-facing service that has been instrumented with an affected tracer version is exposed unless the propagation style has been explicitly narrowed.\n\n### Patches\nThis is resolved in version 5.100.0 and later of the `dd-trace-js` library.\n\n### Workarounds\nIf users cannot upgrade immediately:\n1. Disable `baggage` extraction by removing `baggage` from `DD_TRACE_PROPAGATION_STYLE` (or `DD_TRACE_PROPAGATION_STYLE_EXTRACT` if set independently).\n2. Cap the maximum HTTP request header size at an upstream proxy or web server (for example, Apache `LimitRequestFieldSize`, Nginx `large_client_header_buffers`, Envoy `max_request_headers_kb`).\n\n\n### Resources\nRelated upstream advisories:\n[opentelemetry-go GHSA-mh2q-q3fh-2475](https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475)\n[opentelemetry-dotnet GHSA-g94r-2vxg-569j](https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569j)","state":0,"publishedAt":"2026-07-15T22:58:52+00:00","modifiedAt":"2026-09-10T03:51:12.4620669+00:00","affected":[{"ecosystem":"npm","name":"dd-trace","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"5.100.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/DataDog/dd-trace-js/security/advisories/GHSA-wxqq-gcq8-c443","https://github.com/DataDog/dd-trace-js"],"sourceUrl":"https://github.com/advisories/GHSA-wxqq-gcq8-c443","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-wxqq-gcq8-c443","identifiers":["GHSA-wxqq-gcq8-c443","CVE-2026-50272"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-43321610382942b8ad8c85917eab1546","complete":false,"records":4735,"lastAttemptAt":"2026-10-27T04:24:29.5120624+00:00","lastSuccessAt":"2026-10-24T23:18:49.862+00:00","error":"InvalidDataException","lastVerifiedAt":"2026-10-24T23:18:49.862+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":0,"expectedIdentifiers":13477},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-27T04:23:20.6482565+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-27T04:23:20.6482565+00:00","lastSuccessAt":"2026-10-27T04:23:21.0415276+00:00","error":null,"lastVerifiedAt":"2026-10-27T04:23:21.0415281+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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