Vulnerability Description
OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log errors, enabling DoS via oversized inputs. Versions 1.42.0 and 1.44.0 fix the issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Opentelemetry | Opentelemetry | < 1.42.0 |
Related Weaknesses (CWE)
References
- https://github.com/open-telemetry/opentelemetry-go/pull/7880Issue TrackingPatch
- https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrpIssue TrackingPatchVendor Advisory
- https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrpIssue TrackingPatchVendor Advisory
FAQ
What is CVE-2026-41178?
CVE-2026-41178 is a vulnerability with a CVSS score of 5.3 (MEDIUM). OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log e...
How severe is CVE-2026-41178?
CVE-2026-41178 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41178?
Check the references section above for vendor advisories and patch information. Affected products include: Opentelemetry Opentelemetry.