CVE-2026-32147
- Source
- https://cve.org/CVERecord?id=CVE-2026-32147
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32147.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-32147
- Aliases
-
- EEF-CVE-2026-32147
- GHSA-28jg-mw9x-hpm5
- Downstream
- Related
- Published
- 2026-04-21T12:01:20.350Z
- Modified
- 2026-07-15T01:48:51.814975286Z
- Severity
-
- 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
- Summary
- SFTP chroot bypass via path traversal in SSH_FXP_FSETSTAT
- 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.
The SFTP daemon (sshsftpd) stores the raw, user-supplied path in file handles instead of the chroot-resolved path. When SSHFXP_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.
Any 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.
If 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.
This vulnerability is associated with program files lib/ssh/src/sshsftpd.erl and program routines sshsftpd:doopen/4 and sshsftpd:handle_op/4.
This 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.
- Database specific
{ "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" } ], "cna_assigner": "EEF" }- References
-
- https://cna.erlef.org/cves/CVE-2026-32147.html
- https://github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-32147
- https://www.erlang.org/doc/system/versions.html#order-of-versions
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32147.json
- https://github.com/erlang/otp/security/advisories/GHSA-28jg-mw9x-hpm5
- https://nvd.nist.gov/vuln/detail/CVE-2026-32147
- https://github.com/erlang/otp/commit/28c5d5a6c5f873dc701b597276271763e7d1c004
- https://github.com/erlang/otp
Affected packages
Git / github.com/erlang/otp
Affected ranges
- Type
- GIT
- Repo
- https://github.com/erlang/otp
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedFixed
- 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" ] }