{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "17.0"
              },
              {
                "fixed": "26.2.5.20"
              },
              {
                "introduced": "27.0"
              },
              {
                "fixed": "27.3.4.11"
              },
              {
                "introduced": "28.0"
              },
              {
                "fixed": "28.4.3"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "07b8f441ca711f9812fad9e9115bab3c3aa92f79"
            },
            {
              "fixed": "e5d6d95c9aac559b59b78c66eb558ee54bd4e006"
            },
            {
              "introduced": "601a012837ea0a5c8095bf24223132824177124d"
            },
            {
              "fixed": "c0ce26bb20ab5fcd6e214fa285aec5a409772e61"
            },
            {
              "introduced": "9e6f6742c4d9e9915ee8af0dcb7d97cf1f836116"
            },
            {
              "fixed": "359d91e66ffdede8f7855565087d324581c28f2e"
            },
            {
              "fixed": "28c5d5a6c5f873dc701b597276271763e7d1c004"
            }
          ],
          "repo": "https://github.com/erlang/otp",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-28jg-mw9x-hpm5"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32147.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "3.01"
          },
          {
            "fixed": "*"
          },
          {
            "introduced": "17.0"
          },
          {
            "fixed": "*"
          },
          {
            "introduced": "07b8f441ca711f9812fad9e9115bab3c3aa92f79"
          },
          {
            "fixed": "*"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Erlang OTP ssh (ssh_sftpd module) allows an authenticated SFTP user to modify file attributes outside the configured chroot directory.\n\nThe SFTP daemon (ssh_sftpd) stores the raw, user-supplied path in file handles instead of the chroot-resolved path. When SSH_FXP_FSETSTAT is issued on such a handle, file attributes (permissions, ownership, timestamps) are modified on the real filesystem path, bypassing the root directory boundary entirely.\n\nAny authenticated SFTP user on a server configured with the root option can modify file attributes of files outside the intended chroot boundary. The prerequisite is that a target file must exist on the real filesystem at the same relative path. Note that this vulnerability only allows modification of file attributes; file contents cannot be read or altered through this attack vector.\n\nIf the SSH daemon runs as root, this enables direct privilege escalation: an attacker can set the setuid bit on any binary, change ownership of sensitive files, or make system configuration world-writable.\n\nThis vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl and program routines ssh_sftpd:do_open/4 and ssh_sftpd:handle_op/4.\n\nThis issue affects OTP from OTP 17.0 until OTP 28.4.3, 27.3.4.11, and 26.2.5.20 corresponding to ssh from 3.01 until 5.5.3, 5.2.11.7, and 5.1.4.15.",
  "id": "CVE-2026-32147",
  "modified": "2026-07-15T01:48:51.814975286Z",
  "published": "2026-04-21T12:01:20.350Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-32147.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32147"
    },
    {
      "type": "WEB",
      "url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32147.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/erlang/otp/security/advisories/GHSA-28jg-mw9x-hpm5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32147"
    },
    {
      "type": "FIX",
      "url": "https://github.com/erlang/otp/commit/28c5d5a6c5f873dc701b597276271763e7d1c004"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/erlang/otp"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "SFTP chroot bypass via path traversal in SSH_FXP_FSETSTAT"
}