opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation

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Summary

CVECVE-2026-45292
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 17:16:32 UTC
Updated2026-05-29 15:42:56 UTC
Descriptionopentelemetry-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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

Problem Types: CWE-770 | CWE-770 CWE-770: Allocation of Resources Without Limits or Throttling

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Open-telemetry Opentelemetry-java affected < 1.62.0 Not specified
CNA Io.opentelemetry Opentelemetry-api affected 1.62.0 Not specified
CNA Io.opentelemetry Opentelemetry-extension-trace-propagators affected 1.62.0 Not specified

References

ReferenceSourceLinkTags
github.com/open-telemetry/opentelemetry-java/security/advisories/GHSA-rc... [email protected] github.com
github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0 [email protected] github.com
github.com/open-telemetry/opentelemetry-java/pull/8380 [email protected] github.com
github.com/open-telemetry/opentelemetry-java/commit/03837d3c1763bc35464a... [email protected] github.com
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