CVE-2026-41178
opentelemetry-go's baggage parsing no longer caps raw header length
5.3
MEDIUM
CVSS 3.1
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.
How to fix CVE-2026-41178
To remediate CVE-2026-41178, upgrade the affected package to a fixed version below.
- Debian/golang-opentelemetry-otel—no fix listed
- —upgrade to 1.42.0 or later
- —upgrade to 1.42.0 or later
Is CVE-2026-41178 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-41178.
Affected packages (3)
- from 0
- >= 1.41.0, < 1.42.0
- >= 1.41.0, < 1.42.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |