CVE-2026-41178

MEDIUM EPSS 14.5%
Published Jun 4, 20263w ago · Modified Jun 18, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Jun 4, 2026 3w ago
Last Modified Jun 18, 2026 1w ago

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
14.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-789

Affected Products 2

VendorProductVersionRange
opentelemetryopentelemetry* <1.42.0
opentelemetryopentelemetry1.43.0any

References 2

  • github.com https://github.com/open-telemetry/opentelemetry-go/pull/7880
    Issue TrackingPatch
  • github.com https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835
    Issue TrackingPatchVendor Advisory

Remediation

  • github.com https://github.com/open-telemetry/opentelemetry-go/pull/7880
    Issue TrackingPatch
  • github.com https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835
    Issue TrackingPatchVendor Advisory