medium5.3
CVE-2026-41178
opentelemetry-go's baggage parsing no longer caps raw header length
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | go.opentelemetry.io/otel/baggage | = 1.41.0 | 1.42.0 |
| go | go.opentelemetry.io/otel/propagation | = 1.41.0 | 1.42.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Opentelemetry | Opentelemetry | before 1.42.0 Version 1.43.0 |