CVE-2026-45292 MEDIUM

CVE-2026-45292: opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation

Vendor Open-Telemetry
Product opentelemetry-java
Weakness CWE-770 · Uncontrolled resource consumption
Published May 28, 2026
Last update May 28, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

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.

Key dates

Disclosure timeline

May 28, 2026 CVE published
May 28, 2026 Record updated