# CVE-2026-81192

## Summary

- **CVE ID:** CVE-2026-81192
- **Severity:** HIGH
- **CVSS Score:** 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-426
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 9, 2026

## Description

`OpenTelemetry.Resources.Host` NuGet package, which provides OpenTelemetry resource detectors for host, is affected by an untrusted search path vulnerability on macOS. Prior to version 1.16.0-beta.2, the `host.id` resource attribute detector launches the `sh` and `ioreg` executables by bare name rather than by absolute path, so both are resolved through the `PATH` environment variable. A local attacker who is less privileged than the host application, and who can influence `PATH` or write to a directory that appears in `PATH` ahead of the system directories, can have an arbitrary binary executed in the application's security context, resulting in local code execution/privilege escalation. This vulnerability only affect macOS hosts - Linux and Windows hosts are unaffected. Version 1.16.0-beta.2 contains a patch. No known workarounds are available.

## Affected Products

- open-telemetry — opentelemetry-dotnet-contrib (< 1.16.0-beta.2)

## References

- [CNA](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-v8pv-4842-x354)
- [CNA](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631)
- [CNA](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 3.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._