---
id: CVE-2026-81192
title: >-
  `OpenTelemetry.Resources.Host` NuGet package, which provides OpenTelemetry
  resource detectors for host, is affected by an untrusted search path
  vulnerability on macOS
summary: >-
  `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 dete…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-426
vendor: open-telemetry
product: opentelemetry-dotnet-contrib
affected:
  - opentelemetry-dotnet-contrib < 1.16.0-beta.2
published: '2026-09-08'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T19:58:20.507'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81192'
references:
  - url: 'https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631'
    label: security-advisories@github.com
  - url: 'https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760'
    label: security-advisories@github.com
  - url: >-
      https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-v8pv-4842-x354
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81192'
  - url: 'https://github.com/advisories/GHSA-v8pv-4842-x354'
tags:
  - nvd
  - cve.org
  - ghsa
  - nuget
epss: 0.00177
epssPercentile: 0.06405
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-09T15:42:53.826252Z'
ingestedAt: '2026-09-08T21:11:12.373Z'
aliases:
  - GHSA-v8pv-4842-x354
ecosystem: nuget
patched:
  - OpenTelemetry.Resources.Host 1.16.0-beta.2
---

## Overview

`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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-81192)

Affected packages:

- `OpenTelemetry.Resources.Host < 1.16.0-beta.2`

Patched in:

- `OpenTelemetry.Resources.Host 1.16.0-beta.2`

Source: https://github.com/advisories/GHSA-v8pv-4842-x354