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    CVE-2026-62999

    Copier is a library and CLI app for rendering project templates. From 9.5.0 through 9.16.0, percent-encoded parent-directory segments or encoded path separators in a template URL can match a configured trusted repository prefix before an HTTP server or Git transport decodes the path, allowing unsafe template features from a repository outside the trusted prefix to run after user interaction. This issue is fixed in version 9.17.0.

    Published:Jul 31, 2026
    Last Modified:Jul 31, 2026
    EPS:Jul 31, 2026
    EPSS Score:
    CVSS Score:7.5

    Affected Products

    Vendor
    Copier-org
    Product
    Copier

    Exploits

    No exploit reference

    Related CVEs

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    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…
    CVE-2025-55201 (CVSS 8.5) — Copier library and CLI app for rendering project templates. Prior to 9.9.1, a safe template can currently read…

    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