Vulnerability in Open-Telemetry Opentelemetry-Dotnet-Contrib
CVE-2026-81192
`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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Open-Telemetry Opentelemetry-Dotnet-Contrib — versions < 1.16.0-beta.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-81192?
- CVE-2026-81192 is a high-severity vulnerability in Open-Telemetry Opentelemetry-Dotnet-Contrib, classified under Untrusted Search Path. CVSS score: 7.0/10. Published 2026-09-08.
- How severe is CVE-2026-81192?
- High severity. CVSS v3 base score is 7.0 out of 10.