{"id":"GHSA-v8pv-4842-x354","revision":null,"records":[{"revision":"a0bb7eb09d2a46a08280bf285a47ce15","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-81192","aliases":[],"title":"OpenTelemetry.Resources.Host vulnerable to arbitrary code execution via local PATH hijacking on macOS","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.","state":0,"publishedAt":"2026-09-08T20:18:08.845+00:00","modifiedAt":"2026-09-09T15:43:01.911+00:00","affected":[{"ecosystem":"Vendor product","name":"opentelemetry-dotnet-contrib","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"open-telemetry\",\n                    \"product\": \"opentelemetry-dotnet-contrib\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.16.0-beta.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7,"severity":"HIGH"}],"references":["https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-v8pv-4842-x354","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-81192","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-81192","identifiers":["CVE-2026-81192"]},"retained":false,"historicalAffected":[]},{"revision":"7c89a904677c4025b0a59abddedab162","observedAt":"2026-11-11T16:10:15.222+00:00","statement":{"source":"euvd","id":"EUVD-2026-74187","aliases":["CVE-2026-81192","GHSA-v8pv-4842-x354"],"title":"`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 detecto…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7,"severity":null}],"references":["https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-v8pv-4842-x354","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-74187","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 8, 2026, 8:18:08 PM","dateUpdated":"Sep 9, 2026, 3:43:01 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. 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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.","state":0,"publishedAt":"2026-09-08T21:18:43.447+00:00","modifiedAt":"2026-09-10T19:58:20.507+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7,"severity":"HIGH"}],"references":["https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-v8pv-4842-x354"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-81192","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-426"],"productCriteria":[],"sourceDates":{"published":"2026-09-08T21:18:43.447","lastModified":"2026-09-10T19:58:20.507"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-81192","identifiers":["CVE-2026-81192"]},"retained":false,"historicalAffected":[]},{"revision":"52212cb99f744f518a7295bf53f9b371","observedAt":"2026-10-23T16:01:25.029+00:00","statement":{"source":"osv","id":"GHSA-v8pv-4842-x354","aliases":["CVE-2026-81192"],"title":"OpenTelemetry.Resources.Host vulnerable to arbitrary code execution via local PATH hijacking on macOS","description":"### Summary\n\nThe `OpenTelemetry.Resources.Host` NuGet package is affected by an untrusted search path vulnerability on macOS. The `host.id` resource attribute detector launches the `sh` and `ioreg` executables by bare name rather than by absolute path, so both are resolved\nthrough the `PATH` environment variable.\n\nA 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\ncode execution/privilege escalation.\n\n### Details\n\nThe implementation of the host detector macOS has always invoked `ioreg` and `sh` via their bare names since it was implemented by [open-telemetry/opentelemetry-dotnet-contrib#1631](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631).\n\nThe vulnerability was fixed by [open-telemetry/opentelemetry-dotnet-contrib#4760](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760) which executes `ioreg` directly using its absolute path.\n\n### Impact\n\nApplications running on **macOS** that use the `OpenTelemetry.Resources.Host` detector when an attacker who is *less privileged* than the application process can influence `PATH` or write to a `PATH` directory that precedes the system directories (e.g. a higher-privileged service with a user-writable directory in its search path, or a process inheriting an attacker-influenced environment). The attacker gains code execution in the application's security context through an attacker-controlled `ioreg` executable.\n\n### Mitigation\n\nThis vulnerability only affect macOS hosts - Linux and Windows hosts are unaffected.\n\n### Workarounds\n\nNone known.\n\n### References\n\n- [GHSA-9h8m-3fm2-qjrq](https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-9h8m-3fm2-qjrq)\n- [open-telemetry/opentelemetry-dotnet-contrib#4760](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760)\n- [CWE-426](https://cwe.mitre.org/data/definitions/426.html)","state":0,"publishedAt":"2026-09-16T13:54:16+00:00","modifiedAt":"2026-09-16T14:00:04.957357+00:00","affected":[{"ecosystem":"NuGet","name":"OpenTelemetry.Resources.Host","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.16.0-beta.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/open-telemetry/opentelemetry-dotnet-contrib/security/advisories/GHSA-v8pv-4842-x354","https://nvd.nist.gov/vuln/detail/CVE-2026-81192","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1631","https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/4760","https://github.com/open-telemetry/opentelemetry-dotnet-contrib"],"sourceUrl":"https://github.com/advisories/GHSA-v8pv-4842-x354","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-v8pv-4842-x354","identifiers":["GHSA-v8pv-4842-x354","CVE-2026-81192"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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