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OpenAdvisories
Medium · 5.3 CVE-2026-45292 EUVD-2026-32953GHSA-rcgg-9c38-7xpx

opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation

Published May 28, 2026 · Updated Sep 17, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
open-telemetry opentelemetry-java < 1.62.0 —
io.opentelemetry opentelemetry-api 1.62.0 —
io.opentelemetry opentelemetry-extension-trace-propagators 1.62.0 —

Affected packages

Advisories 4

References