CVE-2026-39883: Opentelemetry

High severity, CVSS 7.0. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Opentelemetry Opentelemetry: from 1.15.0, before 1.43.0 (fixed in 1.43.0)

Published 2026-04-08. Last modified 2026-09-09.