CVE-2026-41178: medium-severity vulnerability in open-telemetry go.opentelemetry.io/otel/baggage
OpenTelemetry-Go's baggage parsing no longer caps raw header length
Published
Follow this CVE+ Monitor go.opentelemetry.io/otel/baggage+ Monitor go.opentelemetry.io/otel/propagation
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L