Command injection in libvcs and vcspull
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | libvcs | < 0.11.1 | 0.11.1 |
| Python (PyPI) | vcspull | < 1.11.1 | 1.11.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2022-21187
- https://github.com/vcs-python/libvcs/pull/306
- https://github.com/vcs-python/vcspull/commit/e1b77128a1fa0754625b5f43d8bc47956f21f33e
- https://github.com/pypa/advisory-database/tree/main/vulns/libvcs/PYSEC-2022-163.yaml
- https://github.com/vcs-python/libvcs/blob/master/CHANGES#libvcs-0111-2022-03-12
- https://github.com/vcs-python/libvcs/blob/v0.11.1/CHANGES%23libvcs-0111-2022-03-12
- https://github.com/vcs-python/vcspull/blob/master/CHANGES#vcspull-1111-2022-03-12
- https://snyk.io/vuln/SNYK-PYTHON-LIBVCS-2421204
- https://pypi.org/project/vcspull
- https://github.com/advisories/GHSA-mv2w-4jqc-6fg4
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-74, CWE-77- Platform
- Python (PyPI)
- Package
libvcs, vcspull- Disclosed
- 14.03.2022
- Updated
- 11.10.2026 13:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2022-163 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-mv2w-4jqc-6fg4 - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-563 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: libvcs
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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