CVE-2026-39883

high

Description

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.

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39883.json

https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hfvc-g4fc-pqhx

https://bugzilla.redhat.com/show_bug.cgi?id=2456718

https://access.redhat.com/security/cve/CVE-2026-39883

https://access.redhat.com/errata/RHSA-2026:26257

https://access.redhat.com/errata/RHSA-2026:26254

http://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.43.0

Details

Source: Mitre, NVD

Published: 2026-04-08

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 6

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 7.3

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

Severity: High

EPSS

EPSS: 0.00005