CVE-2026-81192

Local code execution via PATH hijacking

Published Sep 8, 2026 · Updated Sep 9, 2026

Untrusted search path handling in OpenTelemetry.Resources.Host before 1.16.0-beta.2 allows local users to execute code on macOS. The host.id detector launches sh and ioreg by bare name, causing the process to resolve attacker-controlled executables through PATH. Exploitation requires influence over PATH or write access to an earlier PATH directory, and the substituted binary runs in the application's security context.

CVSS severity7.0
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted search path handling in OpenTelemetry.Resources.Host before 1.16.0-beta.2 allows local users to execute code on macOS. The host.id detector launches sh and ioreg by bare name, causing the process to resolve attacker-controlled executables through PATH. Exploitation requires influence over PATH or write access to an earlier PATH directory, and the substituted binary runs in the application's security context.

The record

CVE
CVE-2026-81192
Published
Sep 8, 2026
Updated
Sep 9, 2026
Vendor
OpenTelemetry
Product
OpenTelemetry .NET Contrib
Classifications
CWE-426, T1574.007
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.16.0-beta.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

OpenTelemetry · OpenTelemetry .NET Contribversion=< 1.16.0-beta.2

Published CVSS scores

7.0GitHub, Inc.CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-426Untrusted Search Path
T1574.007Path Interception by PATH Environment Variable

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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