CVE-2022-46179

Name: CVE-2022-46179
Creator: NVD / NIST
Published: 2022-12-28T08:15:08.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2022-46179 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. LiuOS is a small Python project meant to imitate the functions of a regular operating system. Version 0.1.0 and prior of LiuOS allow an attacker to set the GITHUB_ACTIONS environment variable to anything other than null or true and skip authentication checks. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

LiuOS is a small Python project meant to imitate the functions of a regular operating system. Version 0.1.0 and prior of LiuOS allow an attacker to set the GITHUB_ACTIONS environment variable to anything other than null or true and skip authentication checks. This issue is patched in the latest commit (c658b4f3e57258acf5f6207a90c2f2169698ae22) by requiring the var to be set to true, causing a test script to run instead of being able to login. A potential workaround is to check for the GITHUB_ACTIONS environment variable and set it to "" (no quotes) to null the variable and force credential checks.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.33%

24.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-639

Affected Software

Vendor	Product	Versions
Liuos Project	Liuos	0.1.0

References

https://github.com/LiuWoodsCode/LiuOS/commit/c658b4f3e57258acf5f6207a90c2f2169698ae22Patch, Third Party Advisory
https://github.com/LiuWoodsCode/LiuOS/security/advisories/GHSA-f9x3-mj2r-cqmfExploit, Third Party Advisory
https://github.com/LiuWoodsCode/LiuOS/commit/c658b4f3e57258acf5f6207a90c2f2169698ae22Patch, Third Party Advisory
https://github.com/LiuWoodsCode/LiuOS/security/advisories/GHSA-f9x3-mj2r-cqmfExploit, Third Party Advisory

Timeline

Published: Dec 28, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-46179?

How severe is CVE-2022-46179?

CVE-2022-46179 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2022-46179?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-46179?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST