CVE-2026-39883
Description
A flaw was found in OpenTelemetry-Go. On BSD and Solaris platforms, a local attacker could exploit a vulnerability related to the kenv command. By manipulating the system's PATH environment variable, an attacker could achieve arbitrary code execution or privilege escalation, leading to a compromise of system integrity and confidentiality.
Statement
This is an Important flaw in OpenTelemetry-Go that allows a local attacker to achieve arbitrary code execution or privilege escalation through PATH hijacking. This vulnerability is specific to BSD and Solaris platforms due to the use of the kenv command and does not directly affect Red Hat Enterprise Linux environments. However, the vulnerable component is included in Red Hat products such as Multicluster Engine for Kubernetes.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.8 | 7 | 8.8 |
| Attack Vector | Local | Local | Local |
| Attack Complexity | Low | High | Low |
| Privileges Required | Low | Low | Low |
| User Interaction | None | None | None |
| Scope | Changed | Unchanged | Changed |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability,Access Control
Technical Impact: Gain Privileges or Assume Identity; Execute Unauthorized Code or Commands
There is the potential for arbitrary code execution with privileges of the vulnerable program.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
The program could be redirected to the wrong files, potentially triggering a crash or hang when the targeted file is too large or does not have the expected format.
Confidentiality
Technical Impact: Read Files or Directories
The program could send the output of unauthorized files to the attacker.
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