{"id":"CVE-2026-50275","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-50275","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…","details":"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.","published":"2026-09-17T21:17:14.073","modified":"2026-09-17T21:17:14.073","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/DataDog/dd-trace-php/commit/2f7987eb02e306bb62bce8ec4152dece68112f51","label":"DataDog/dd-trace-php@2f7987e"},"references":[{"type":"WEB","url":"https://github.com/DataDog/dd-trace-php/commit/2f7987eb02e306bb62bce8ec4152dece68112f51"},{"type":"WEB","url":"https://github.com/DataDog/dd-trace-php/commit/43072ccafe55a5dbdfba75a42bf316b4150ae1e5"},{"type":"WEB","url":"https://github.com/DataDog/dd-trace-php/pull/3854"},{"type":"WEB","url":"https://github.com/DataDog/dd-trace-php/releases/tag/1.19.2"},{"type":"WEB","url":"https://github.com/DataDog/dd-trace-php/releases/tag/1.20.0"},{"type":"WEB","url":"https://github.com/DataDog/dd-trace-php/security/advisories/GHSA-phwx-ww2p-cv9v"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-17T21:17:14.073"}}