CVE-2026-39883 HIGH

CVE-2026-39883: OpenTelemetry-Go has an incomplete fix for CVE-2026-24051: BSD kenv command not using absolute path enables PATH hijacking

Vendor Open-Telemetry
Product opentelemetry-go
Weakness CWE-426
Published April 8, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.15.0 to 1.42.0, the fix for CVE-2026-24051 changed the Darwin ioreg command to use an absolute path but left the BSD kenv command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms. This vulnerability is fixed in 1.43.0.

Key dates

02Disclosure timeline

April 8, 2026 CVE published
June 30, 2026 Record updated