CVE-2026-45292
opentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-770 |
| Vendor | open-telemetry |
| Product | opentelemetry-java |
| Published | May 28, 2026 |
| Last Updated | May 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
open-telemetry / opentelemetry-java
< 1.62.0
io.opentelemetry / opentelemetry-api
1.62.0
io.opentelemetry / opentelemetry-extension-trace-propagators
1.62.0
References
github.com: https://github.com/open-telemetry/opentelemetry-java/security/advisories/GHSA-rcgg-9c38-7xpx github.com: https://github.com/open-telemetry/opentelemetry-java/pull/8380 github.com: https://github.com/open-telemetry/opentelemetry-java/commit/03837d3c1763bc35464aea1078671e2ef2336a5f github.com: https://github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0