CVE-2026-50275

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.
Configurations

No configuration.

History

17 Sep 2026, 21:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-17 21:17

Updated : 2026-09-23 18:12


NVD link : CVE-2026-50275

Mitre link : CVE-2026-50275

CVE.ORG link : CVE-2026-50275


JSON object : View

Products Affected

No product.

CWE
CWE-770

Allocation of Resources Without Limits or Throttling