Threats affecting pkg:maven/io.opentelemetry/opentelemetry-api

OpenTelemetry Java's W3C trace-context propagator has a vulnerability that allows crafted tracestate headers to cause excessive CPU consumption due to quadratic regex backtracking. This can lead to denial of service by blocking the parsing thread. The issue affects versions prior to 1.67.0 and is fixed in version 1.67.0. Mitigation includes upgrading to 1.67.0 or later or rejecting oversized tracestate headers before extraction.

opentelemetry-java is the Java implementation of the OpenTelemetry API for recording telemetry, and SDK for managing telemetry recorded by the API. Prior to 1.62.0, a vulnerability affects the baggage propagation implementation in opentelemetry-api and opentelemetry-extension-trace-propagators. Parsing oversized baggage causes unbounded memory allocation and CPU consumption. Because baggage is automatically re-injected into every outgoing request, the effect can fan out to downstream services that never received the original malicious request. This vulnerability is fixed in 1.62.0.