CVE-2026-48504 OpenTelemetry Rust: Unbounded memory allocation in W3C Baggage propagation

OpenTelemetry Rust is the Rust OpenTelemetry implementation. In 0.32.0 and earlier, BaggagePropagator::extractwithcontext in opentelemetrysdk did not enforce W3C Baggage size limits before parsing an inbound baggage header, so a large attacker-controlled header could cause unnecessary CPU work an...

dd-trace-go: Improper parsing of W3C baggage headers may lead to DoS

Datadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing item-count or byte-size limits on the extract path. The DDTRACEBAGGAGEMAXITEMS default 64 and DDTRACEBAGGAGEMAXBYTES default 8192 limits were applied only to baggage injection, n...

GHSA-W9WP-H8WV-79JX opentelemetry_sdk has unbounded memory allocation in W3C Baggage propagation

Summary BaggagePropagator::extractwithcontext in opentelemetrysdk did not enforce the W3C Baggage size limits before parsing an inbound baggage header. A large attacker-controlled header could cause unnecessary CPU work and short-lived heap allocations while parsing entries that would later be...

GHSA-8988-4F7V-96QF OpenTelemetry Core: Unbounded memory allocation in W3C Baggage propagation

Overview W3CBaggagePropagator.extract in @opentelemetry/core does not enforce size limits when parsing inbound baggage HTTP headers. The W3C Baggage specification recommends a maximum of 8,192 bytes and 180 entries; these limits were only enforced on the outbound inject path, not on the inbound...

OpenTelemetry Core: Unbounded memory allocation in W3C Baggage propagation

Overview W3CBaggagePropagator.extract in @opentelemetry/core does not enforce size limits when parsing inbound baggage HTTP headers. The W3C Baggage specification recommends a maximum of 8,192 bytes and 180 entries; these limits were only enforced on the outbound inject path, not on the inbound...

PT-2026-49598

Name of the Vulnerable Software and Affected Versions @opentelemetry/core versions prior to 2.8.0 Description The W3CBaggagePropagator.extract function in @opentelemetry/core fails to enforce size limits when parsing inbound baggage HTTP headers. While the W3C Baggage specification recommends a...

PT-2026-41161

Name of the Vulnerable Software and Affected Versions opentelemetry-java versions prior to 1.62.0 Description A flaw in the baggage propagation implementation within opentelemetry-api and opentelemetry-extension-trace-propagators allows for unbounded memory allocation and CPU consumption when...