High severity · published Apr 8, 2026
CVE-2026-39883
OpenTelemetry-Go has an incomplete fix for CVE-2026-24051: BSD kenv command not using absolute path enables PATH hijacking
7.0
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
opentelemetry-go · open-telemetry
>= 1.15.0, < 1.43.0 · source: vendor
OP
Opentelemetry · Opentelemetry
1.15.0 before 1.43.0 · source: NVD
CM
Cert Manager support for Red Hat OpenShift release 1.19 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat OpenShift Workload Availability 0.3 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat OpenShift Workload Availability 0.8 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Openshift Data Foundation 4.22 · Red Hat
All versions, or not specified · source: CISA
ME
multicluster engine for Kubernetes 2.8 · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-39883
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-39883
Release Notes
http://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.43.0
Exploit
https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hfvc-g4fc-pqhx
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:26254
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:26257
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:37387
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:54274
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