CVE-2026-45292
MEDIUMopentelemetry-java: Unbounded Memory Allocation in W3C Baggage Propagation
Title source: cnaDescription
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.
References (4)
Core 4
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/open-telemetry/opentelemetry-java/security/advisories/GHSA-rcgg-9c38-7xpx
X_Refsource_Misc x_refsource_misc
https://github.com/open-telemetry/opentelemetry-java/pull/8380
X_Refsource_Misc x_refsource_misc
https://github.com/open-telemetry/opentelemetry-java/commit/03837d3c1763bc35464aea1078671e2ef2336a5f
X_Refsource_Misc x_refsource_misc
https://github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0
Scores
CVSS v3
5.3
EPSS
0.0050
EPSS Percentile
38.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (5)
io.opentelemetry/opentelemetry-api
0 - 1.62.0Maven
io.opentelemetry/opentelemetry-api
1.62.0
io.opentelemetry/opentelemetry-extension-trace-propagators
0 - 1.62.0Maven
io.opentelemetry/opentelemetry-extension-trace-propagators
1.62.0
open-telemetry/opentelemetry-java
< 1.62.0
Published
May 28, 2026
Tracked Since
May 28, 2026