PYSEC-2026-563

    Dashboard / Vulnerabilities / PYSEC-2026-563

    PYSEC-2026-563

    Published: 29 Jun 2026Last Modified: 1 Jul 2026

    Summary: Command injection in libvcs and vcspull

    Details: 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.

    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

    Affected packages

    Package

    Name: vcspull

    Purl: pkg:pypi/vcspull

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.11.1

    Affected versions

    0.0.10
    0.0.6
    0.0.7
    0.0.8
    0.0.8.1
    0.0.8.2
    0.0.8.3
    0.0.8.4
    0.0.9
    0.0.9.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2026-563 | CVE-DB