Resource exhaustion in Io.opentelemetry Opentelemetry-Api
CVE-2026-45292
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (56.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.008 · change: -0.002
Affected products
- Io.opentelemetry Opentelemetry-Api — versions 1.62.0
- Io.opentelemetry Opentelemetry-Extension-Trace-Propagators — versions 1.62.0
- Open-Telemetry Opentelemetry-Java — versions < 1.62.0
Weakness classification (CWE)
References
- https://github.com/open-telemetry/opentelemetry-java/security/advisories/GHSA-rcgg-9c38-7xpx
- https://github.com/open-telemetry/opentelemetry-java/pull/8380
- https://github.com/open-telemetry/opentelemetry-java/commit/03837d3c1763bc35464aea1078671e2ef2336a5f
- https://github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-45292?
- CVE-2026-45292 is a medium-severity vulnerability in Io.opentelemetry Opentelemetry-Api, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-05-28.
- How severe is CVE-2026-45292?
- Medium severity. CVSS v3 base score is 5.3 out of 10.