OpenTelemetry.Resources.Host vulnerable to arbitrary code execution via local PATH hijacking on macOS

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0018, the 7th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 15:21 UTC First seen by agentprime
2. 31 Oct 2026, 15:21 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-v8pv-4842-x354
• OSV: GHSA-v8pv-4842-x354
• github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-v8pv-4842-x354
• nvd.nist.gov/vuln/detail/CVE-2026-81192
• github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631
• github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760
• github.com/open-telemetry/opentelemetry-dotnet-contrib

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.