{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*",
              "cpe:2.3:a:proftpd:proftpd:1.3.10:rc1:*:*:*:*:*:*",
              "cpe:2.3:a:proftpd:proftpd:1.3.10:rc2:*:*:*:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.3.9b"
              },
              {
                "introduced": "1.3.10-rc1"
              },
              {
                "last_affected": "1.3.10-rc1"
              },
              {
                "introduced": "1.3.10-rc2"
              },
              {
                "last_affected": "1.3.10-rc2"
              }
            ],
            "source": [
              "CPE_RANGE",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "390b21555268bbc64b66d2dfa7ae40476419b80f"
            },
            {
              "introduced": "df75a382880e68d8c0f252cf930a7d78c57a9f6f"
            },
            {
              "last_affected": "13aec2ef773d981d9e64d9618fcfaa3238f21a8e"
            }
          ],
          "repo": "https://github.com/proftpd/proftpd",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.3.10-rc1",
        "1.3.10-rc2"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35025.json"
  },
  "details": "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.",
  "id": "CVE-2026-35025",
  "modified": "2026-07-08T05:36:07.760987278Z",
  "published": "2026-06-24T13:21:42.281Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.proftpd.org/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35025.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35025"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/proftpd-acl-bypass-via-proc-self-root-path-prefix-in-rnfr"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/proftpd/proftpd"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/proftpd/proftpd/issues/2170"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ProFTPD ACL Bypass via /proc/self/root Path Prefix in RNFR"
}