{"id":"CVE-2026-50275","title":"The Datadog PHP Tracer provides application performance monitoring and distributed tracing for PHP","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 parses incoming W3C baggage HTTP headers without enforc…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-770"],"vendor":"DataDog","product":"dd-trace-php","affected":["dd-trace-php < 1.19.2"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:17:16.217","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-50275","references":[{"url":"https://github.com/DataDog/dd-trace-php/commit/2f7987eb02e306bb62bce8ec4152dece68112f51","label":"security-advisories@github.com"},{"url":"https://github.com/DataDog/dd-trace-php/commit/43072ccafe55a5dbdfba75a42bf316b4150ae1e5","label":"security-advisories@github.com"},{"url":"https://github.com/DataDog/dd-trace-php/pull/3854","label":"security-advisories@github.com"},{"url":"https://github.com/DataDog/dd-trace-php/releases/tag/1.19.2","label":"security-advisories@github.com"},{"url":"https://github.com/DataDog/dd-trace-php/releases/tag/1.20.0","label":"security-advisories@github.com"},{"url":"https://github.com/DataDog/dd-trace-php/security/advisories/GHSA-phwx-ww2p-cv9v","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-18T20:08:34.736084Z"},"epss":0.00485,"epssPercentile":0.40742,"ingestedAt":"2026-09-17T20:28:02.784Z","slug":"CVE-2026-50275","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}