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CVE-2026-81192— OpenTelemetry.Resources.Host vulnerable to arbitrary code execution via local PATH hijacking on macOS

Quick assessment

Affected
open-telemetry opentelemetry-dotnet-contrib
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NuGet 包（提供主机相关的 OpenTelemetry 资源检测器）在 macOS 上存在一个不受信任的搜索路径漏洞。在 1.16.0-beta.2 版本之前， 资源属性检测器通过裸名称（bare name）而非绝对路径来启动 和 可执行文件，因此这两个可执行文件的解析依赖于 环境变量。一个权限低于宿主应用程序的本地攻击者，若能影响 或向位于系统目录之前出现在 中的目录写入内容，就可以让任意二进制文件在应用程序的安全上下文中执行，从而导致本地代码执行或权限提升。该漏洞仅影响 macOS 主机；Linux 和 W

CVSS 7.0 · High
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I. Basic Information for CVE-2026-81192

Vulnerability Information
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Vulnerability Title
OpenTelemetry.Resources.Host vulnerable to arbitrary code execution via local PATH hijacking on macOS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可信的搜索路径
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-telemetry opentelemetry-dotnet-contrib < 1.16.0-beta.2 -

II. Public POCs for CVE-2026-81192

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III. Intelligence Information for CVE-2026-81192

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Vendor Advisories for CVE-2026-81192 (1)

IV. Related Vulnerabilities

Same product: opentelemetry-dotnet-contrib
Same vendor: open-telemetry
Same weakness: CWE-426

V. Comments for CVE-2026-81192

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