opentelemetry-java: Quadratic CPU consumption in W3C tracestate parsing

Summary OpenTelemetry Java's W3C trace-context propagator permits excessive CPU consumption when extracting crafted tracestate headers, potentially leading to denial of service. Regex backtracking causes quadratic parsing time for headers containing long runs of spaces or tabs without a following...

GHSA-CCRJ-GW8R-854M opentelemetry-java: Quadratic CPU consumption in W3C tracestate parsing

Summary OpenTelemetry Java's W3C trace-context propagator permits excessive CPU consumption when extracting crafted tracestate headers, potentially leading to denial of service. Regex backtracking causes quadratic parsing time for headers containing long runs of spaces or tabs without a following...

CVE-2026-118259

The opentelemetry-java library (versions prior to 1.67.0 ) is vulnerable to a ReDoS-style attack due to quadratic backtracking in the W3CTraceContextPropagator.extract() method. When parsing tracestate headers containing long sequences of spaces or tabs without a trailing comma, the regex delimit...

CVE-2026-118259 opentelemetry-java: Quadratic CPU consumption in W3C tracestate parsing

opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.67.0, W3CTraceContextPropagator.extract uses regex delimiter processing that can exhibit quadratic backtracking while parsing tracestate...