CVE-2026-41178
MEDIUMOpenTelemetry-Go's baggage parsing no longer caps raw header length
Title source: cnaDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835
X_Refsource_Misc x_refsource_misc
https://github.com/open-telemetry/opentelemetry-go/pull/7880
Scores
CVSS v3
5.3
EPSS
0.0042
EPSS Percentile
33.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-789
Status
published
Products (8)
open-telemetry/go.opentelemetry.io/otel/baggage
= 1.41.0
open-telemetry/go.opentelemetry.io/otel/baggage
= 1.43.0
open-telemetry/go.opentelemetry.io/otel/propagation
= 1.41.0
open-telemetry/go.opentelemetry.io/otel/propagation
= 1.43.0
otel/baggage
1.41.0 - 1.42.0Go
otel/baggage
1.43.0 - 1.44.0Go
otel/propagation
1.41.0 - 1.42.0Go
otel/propagation
1.43.0 - 1.44.0Go
Published
Jun 04, 2026
Tracked Since
Jun 04, 2026