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Vulnerable Software

Vulnerability Details CVE-2026-35025

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 24.9%
CVSS Severity
CVSS v3 Score 8.1
Products affected by CVE-2026-35025
  • Proftpd » Proftpd » Version: 1.2.0
    cpe:2.3:a:proftpd:proftpd:1.2.0
  • Proftpd » Proftpd » Version: 1.2.1
    cpe:2.3:a:proftpd:proftpd:1.2.1
  • Proftpd » Proftpd » Version: 1.2.10
    cpe:2.3:a:proftpd:proftpd:1.2.10
  • Proftpd » Proftpd » Version: 1.2.2
    cpe:2.3:a:proftpd:proftpd:1.2.2
  • Proftpd » Proftpd » Version: 1.2.3
    cpe:2.3:a:proftpd:proftpd:1.2.3
  • Proftpd » Proftpd » Version: 1.2.4
    cpe:2.3:a:proftpd:proftpd:1.2.4
  • Proftpd » Proftpd » Version: 1.2.5
    cpe:2.3:a:proftpd:proftpd:1.2.5
  • Proftpd » Proftpd » Version: 1.2.6
    cpe:2.3:a:proftpd:proftpd:1.2.6
  • Proftpd » Proftpd » Version: 1.2.7
    cpe:2.3:a:proftpd:proftpd:1.2.7
  • Proftpd » Proftpd » Version: 1.2.8
    cpe:2.3:a:proftpd:proftpd:1.2.8
  • Proftpd » Proftpd » Version: 1.2.9
    cpe:2.3:a:proftpd:proftpd:1.2.9
  • Proftpd » Proftpd » Version: 1.3.0
    cpe:2.3:a:proftpd:proftpd:1.3.0
  • Proftpd » Proftpd » Version: 1.3.1
    cpe:2.3:a:proftpd:proftpd:1.3.1
  • Proftpd » Proftpd » Version: 1.3.10
    cpe:2.3:a:proftpd:proftpd:1.3.10
  • Proftpd » Proftpd » Version: 1.3.2
    cpe:2.3:a:proftpd:proftpd:1.3.2
  • Proftpd » Proftpd » Version: 1.3.3
    cpe:2.3:a:proftpd:proftpd:1.3.3
  • Proftpd » Proftpd » Version: 1.3.4
    cpe:2.3:a:proftpd:proftpd:1.3.4
  • Proftpd » Proftpd » Version: 1.3.5
    cpe:2.3:a:proftpd:proftpd:1.3.5
  • Proftpd » Proftpd » Version: 1.3.5a
    cpe:2.3:a:proftpd:proftpd:1.3.5a
  • Proftpd » Proftpd » Version: 1.3.5b
    cpe:2.3:a:proftpd:proftpd:1.3.5b
  • Proftpd » Proftpd » Version: 1.3.5c
    cpe:2.3:a:proftpd:proftpd:1.3.5c
  • Proftpd » Proftpd » Version: 1.3.5d
    cpe:2.3:a:proftpd:proftpd:1.3.5d
  • Proftpd » Proftpd » Version: 1.3.5e
    cpe:2.3:a:proftpd:proftpd:1.3.5e
  • Proftpd » Proftpd » Version: 1.3.6
    cpe:2.3:a:proftpd:proftpd:1.3.6
  • Proftpd » Proftpd » Version: 1.3.6c
    cpe:2.3:a:proftpd:proftpd:1.3.6c
  • Proftpd » Proftpd » Version: 1.3.7
    cpe:2.3:a:proftpd:proftpd:1.3.7
  • Proftpd » Proftpd » Version: 1.3.7a
    cpe:2.3:a:proftpd:proftpd:1.3.7a
  • Proftpd » Proftpd » Version: 1.3.7b
    cpe:2.3:a:proftpd:proftpd:1.3.7b
  • Proftpd » Proftpd » Version: 1.3.7c
    cpe:2.3:a:proftpd:proftpd:1.3.7c
  • Proftpd » Proftpd » Version: 1.3.7d
    cpe:2.3:a:proftpd:proftpd:1.3.7d
  • Proftpd » Proftpd » Version: 1.3.7e
    cpe:2.3:a:proftpd:proftpd:1.3.7e
  • Proftpd » Proftpd » Version: 1.3.7f
    cpe:2.3:a:proftpd:proftpd:1.3.7f
  • Proftpd » Proftpd » Version: 1.3.8
    cpe:2.3:a:proftpd:proftpd:1.3.8
  • Proftpd » Proftpd » Version: 1.3.8a
    cpe:2.3:a:proftpd:proftpd:1.3.8a
  • Proftpd » Proftpd » Version: 1.3.8b
    cpe:2.3:a:proftpd:proftpd:1.3.8b
  • Proftpd » Proftpd » Version: 1.3.8c
    cpe:2.3:a:proftpd:proftpd:1.3.8c
  • Proftpd » Proftpd » Version: 1.3.8d
    cpe:2.3:a:proftpd:proftpd:1.3.8d
  • Proftpd » Proftpd » Version: 1.3.9
    cpe:2.3:a:proftpd:proftpd:1.3.9
  • Proftpd » Proftpd » Version: 1.3.9a
    cpe:2.3:a:proftpd:proftpd:1.3.9a
  • Proftpd » Proftpd » Version: 1.3.9b
    cpe:2.3:a:proftpd:proftpd:1.3.9b


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