CVE-2026-41178

OpenTelemetry-Go's baggage parsing no longer caps raw header length

Published Jun 4, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-5wrp-cwcj-q835 opentelemetry-go's baggage parsing no longer caps raw header length
History
Type Values Removed Values Added
First Time appeared Opentelemetry
Opentelemetry opentelemetry-go
Vendors & Products Opentelemetry
Opentelemetry opentelemetry-go
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title OpenTelemetry-Go's baggage parsing no longer caps raw header length
Weaknesses CWE-789
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 4, 2026, 3:46 PM
Reserved
Apr 17, 2026, 4:34 PM
Status
Analyzed
Published
Jun 4, 2026, 4:16 PM
Modified
Jul 22, 2026, 8:10 PM