PT-2026-66629 · Drakkan · Sftpgo

Nullx3D · CVE-2026-10031 · Published 2026-07-30 · Updated 2026-07-30

Mitre

CVSS v3.1

4.2

Medium

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

SFTPGo prior to 2.7.4 contains a permission bypass vulnerability that allows authenticated users to circumvent per-directory access controls by creating symbolic links in a permitted directory that point to files in directories where download, upload, or overwrite permissions are denied. Attackers can exploit the create symlinks permission combined with read and write access in one directory to read or modify files in restricted directories, as operations are authorized against the link's directory permissions rather than the dereferenced target's directory permissions.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-10031

Affected Products

Sftpgo

References · 5

• https://github.com/drakkan/sftpgo/security/advisories/GHSA-fj9v-mxr3-w75w · Vendor Advisory
• https://github.com/drakkan/sftpgo/releases/tag/v2.7.4 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-10031 · Security Note
• https://github.com/drakkan/sftpgo · Note
• https://vulncheck.com/advisories/sftpgo-permission-bypass-via-symbolic-link-creation · Note