PT-2026-121413

Name of the Vulnerable Software and Affected Versions opentelemetry-api versions 1.0.0 through 1.45.0 Description The TraceState.from header function in opentelemetry/trace/span.py, which is accessed via TraceContextTextMapPropagator.extract, uses a regular expression to parse inbound W3C...

GHSA-GPWF-4H98-V82Q datadog-opentelemetry has unbounded W3C tracestate parsing that may lead to DoS

Impact Datadog tracing libraries that implement W3C Trace Context tracecontext propagation parse the incoming tracestate header without enforcing a size cap on the Datadog vendor entry dd=.... The dd= value contains semicolon-separated key:value pairs, and the parser allocates a hash-map entry fo...

datadog-opentelemetry has unbounded W3C tracestate parsing that may lead to DoS

Impact Datadog tracing libraries that implement W3C Trace Context tracecontext propagation parse the incoming tracestate header without enforcing a size cap on the Datadog vendor entry dd=.... The dd= value contains semicolon-separated key:value pairs, and the parser allocates a hash-map entry fo...

CVE-2026-54788

dd-trace-rs (Datadog APM for Rust), versions 0.1.0 through 0.3.3, is affected by an unbounded W3C tracestate parsing flaw in datadog-opentelemetry/src/propagation/tracecontext.rs. The parser collects every semicolon-separated key:value pair in the Datadog dd=... vendor entry into a HashMap withou...

CVE-2026-54788: Allocation of Resources Without Limits or Throttling

dd-trace-rs provides Datadog application performance monitoring for Rust. From 0.1.0 until 0.3.3, datadog-opentelemetry/src/propagation/tracecontext.rs parses the W3C tracestate header and collects every semicolon-separated key and value pair in the Datadog dd=... vendor entry into a HashMap...

Allocation of Resources Without Limits or Throttling

Overview OpenTelemetry.Api is a package that application developers and library authors use to instrument their application/library. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to improper handling of tracestate and traceparent...