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    CVE-2025-55201

    Copier library and CLI app for rendering project templates. Prior to 9.9.1, a safe template can currently read and write arbitrary files because Copier exposes a few pathlib.Path objects in the Jinja context which have unconstrained I/O methods. This effectively renders the security model w.r.t. filesystem access useless. This vulnerability is fixed in 9.9.1.

    Published:Aug 18, 2025
    Last Modified:Apr 15, 2026
    EPS:Aug 18, 2025
    EPSS Score:0.00039
    CVSS Score:8.5

    Affected Products

    Vendor
    Copier-org
    Product
    Copier

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-34730 (CVSS 5.5) — Copier is a library and CLI app for rendering project templates. Prior to version 9.14.1, Copier's _external_d…
    CVE-2026-34726 (CVSS 4.4) — Copier is a library and CLI app for rendering project templates. Prior to version 9.14.1, Copier's _subdirecto…
    CVE-2026-23986 (CVSS 6.9) — Copier is a library and CLI app for rendering project templates. Prior to version 9.11.2, Copier suggests that…
    CVE-2026-23968 (CVSS 6.8) — Copier is a library and CLI app for rendering project templates. Prior to version 9.11.2, Copier suggests that…
    CVE-2025-55214 (CVSS 6.9) — Copier library and CLI app for rendering project templates. From 7.1.0 to before 9.9.1, Copier suggests that i…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
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    Changed
    Confidentiality
    None
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    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High