CVE-2022-21187

Name: CVE-2022-21187
Creator: NVD / NIST
Published: 2022-03-14T18:15:07.917+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.65%

Last modified Jun 17, 2026

CVE-2022-21187 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The package libvcs before 0.11.1 are vulnerable to Command Injection via argument injection. When calling the update_repo function (when using hg), the url parameter is passed to the hg clone command. EPSS estimates a 3.65% chance of exploitation in the next 30 days.

Description

The package libvcs before 0.11.1 are vulnerable to Command Injection via argument injection. When calling the update_repo function (when using hg), the url parameter is passed to the hg clone command. By injecting some hg options it was possible to get arbitrary command execution.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.65%

88.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-88

Affected Software

Vendor	Product	Versions
Libvcs Project	Libvcs	< 0.11.1

References

https://github.com/vcs-python/libvcs/blob/v0.11.1/CHANGES%23libvcs-0111-2022-03-12Release Notes, Third Party Advisory
https://github.com/vcs-python/libvcs/pull/306Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-PYTHON-LIBVCS-2421204Third Party Advisory
https://github.com/vcs-python/libvcs/blob/v0.11.1/CHANGES%23libvcs-0111-2022-03-12Release Notes, Third Party Advisory
https://github.com/vcs-python/libvcs/pull/306Patch, Third Party Advisory
https://snyk.io/vuln/SNYK-PYTHON-LIBVCS-2421204Third Party Advisory

Timeline

Published: Mar 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-21187?

How severe is CVE-2022-21187?

CVE-2022-21187 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.65% probability of exploitation in the next 30 days.

How do I fix CVE-2022-21187?

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-2022-21187?

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

Scan your code now

Source: NVD / NIST