CVE-2026-75037
Received Received - Intake

Polkit Authentication Bypass in LACT on Linux

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: SUSE

Description
Polkit Authentication Based on UnixProcessSubject / Peer PID in LACT on Linux allows an Authentication Bypass. This issue affects LACT through 0.10.0. Fixed by commit d0478fe42c2219454e272f96b1cbd29ab37ee566.

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Meta Information

Published
2026-08-25
Last Modified
2026-08-25
Generated
2026-08-25
AI Q&A
2026-08-25
EPSS Evaluated
N/A
NVD
CVE-2026-75037
EUVD
EUVD-2026-65390

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-290 This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

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Executive Summary

This vulnerability is an Authentication Bypass in LACT (Linux GPU Configuration And Monitoring Tool) versions up to 0.10.0. It occurs due to Polkit Authentication Based on UnixProcessSubject or Peer PID, allowing unauthorized access. The issue was fixed in commit d0478fe42c2219454e272f96b1cbd29ab37ee566.

Detection Guidance

To detect this vulnerability, check the version of LACT installed on your system. If you are running LACT version 0.10.0 or earlier, your system may be vulnerable. Run 'lact --version' or check your package manager for the installed version. Compare it against the fixed commit d0478fe42c2219454e272f96b1cbd29ab37ee566.

Impact Analysis

An attacker with local access could bypass authentication and gain elevated privileges on the system. This could allow unauthorized control over GPU settings, power management, or monitoring features, potentially leading to system instability or misuse of GPU resources.

Mitigation Strategies

Immediately update LACT to a version that includes the fix from commit d0478fe42c2219454e272f96b1cbd29ab37ee566. If an update is not available, consider disabling the LACT service or restricting its use to trusted networks only. Avoid using remote TCP connections for LACT as they lack authentication.

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