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    1 vulnerability found for ProFTPD by ProFTPD Project

    CVE-2026-35025 (GCVE-0-2026-35025)

    Vulnerability from cvelistv5 – Published: 2026-06-24 13:21 – Updated: 2026-06-24 15:01 X_Open Source
    VLAI
    Title
    ProFTPD ACL Bypass via /proc/self/root Path Prefix in RNFR
    Summary
    ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.
    Severity
    8.6 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    8.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
    Assigner
    References
    Impacted products
    Vendor Product Version
    ProFTPD Project ProFTPD Affected: 0 , ≤ 1.3.9b (custom)
    Affected: 0 , ≤ 1.3.10rc2 (custom)
    		Create a notification for this product.
    Date Public
    2026-06-23 00:00
    Credits
    djnn VulnCheck
    Show details on NVD website
    To clipboard 

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