CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2026-41178
Medium (5.3) in opentelemetry opentelemetry. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in go.opentelemetry.io/otel/baggage 1.42.0, 1.44.0.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-31)
- CWE
- CWE-789
- Published
- Modified
- Record from
- the NVD, synced
Affected
- opentelemetry:opentelemetry
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5wrp-cwcj-q835 | Go | go.opentelemetry.io/otel/baggage | >=1.41.0 <1.42.0 | 1.42.0 |
| GHSA-5wrp-cwcj-q835 | Go | go.opentelemetry.io/otel/propagation | >=1.41.0 <1.42.0 | 1.42.0 |
| GHSA-5wrp-cwcj-q835 | Go | go.opentelemetry.io/otel/baggage | >=1.43.0 <1.44.0 | 1.44.0 |
| GHSA-5wrp-cwcj-q835 | Go | go.opentelemetry.io/otel/propagation | >=1.43.0 <1.44.0 | 1.44.0 |
| GO-2026-5158 | Go | go.opentelemetry.io/otel | >=1.41.0 <1.42.0 >=1.43.0 <1.44.0 | 1.42.0, 1.44.0 |