open-telemetry opentelemetry-go up to 1.42.x untrusted search path

Summaryinfo

A vulnerability identified as problematic has been detected in open-telemetry opentelemetry-go up to 1.42.x. This vulnerability affects unknown code. This manipulation causes untrusted search path. This vulnerability is handled as CVE-2026-39883. It is possible to launch the attack on the local host. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in open-telemetry opentelemetry-go up to 1.42.x. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a untrusted search path vulnerability. The CWE definition for the vulnerability is CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-39883 since 04/07/2026. The exploitation appears to be difficult. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1574 according to MITRE ATT&CK.

Upgrading to version 1.43.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Vendor

• open-telemetry

Name

• opentelemetry-go

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42

Website

• Product: https://github.com/open-telemetry/opentelemetry-go/

CPE 2.3info

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