CVE-2026-41178

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 v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/open-telemetry/opentelemetry-go/pull/7880	Issue Tracking Patch
https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835	Issue Tracking Patch Vendor Advisory
https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835	Issue Tracking Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:opentelemetry:opentelemetry::::::go::*
	cpe:2.3:a:opentelemetry:opentelemetry:1.43.0:::::go::

History

18 Jun 2026, 14:34

Type	Values Removed	Values Added
References	~~() https://github.com/open-telemetry/opentelemetry-go/pull/7880 -~~	() https://github.com/open-telemetry/opentelemetry-go/pull/7880 - Issue Tracking, Patch
References	~~() https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835 -~~	() https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835 - Issue Tracking, Patch, Vendor Advisory
CPE		cpe:2.3:a:opentelemetry:opentelemetry::::::go::* cpe:2.3:a:opentelemetry:opentelemetry:1.43.0:::::go::
First Time		Opentelemetry opentelemetry Opentelemetry

04 Jun 2026, 17:16

Type	Values Removed	Values Added
References	~~() https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835 -~~	() https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835 -

04 Jun 2026, 16:23

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-04 16:16

Updated : 2026-06-18 14:34

NVD link : CVE-2026-41178

Mitre link : CVE-2026-41178

CVE.ORG link : CVE-2026-41178

JSON object : View

Products Affected

opentelemetry

opentelemetry

CWE

CWE-789

Memory Allocation with Excessive Size Value

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