CVE-2026-10031

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.

CVSS v3 4.2 MEDIUM

4.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/drakkan/sftpgo
https://github.com/drakkan/sftpgo/releases/tag/v2.7.4
https://github.com/drakkan/sftpgo/security/advisories/GHSA-fj9v-mxr3-w75w
https://www.vulncheck.com/advisories/sftpgo-permission-bypass-via-symbolic-link-creation

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-30 23:16

Updated : 2026-09-09 20:26

NVD link : CVE-2026-10031

Mitre link : CVE-2026-10031

CVE.ORG link : CVE-2026-10031

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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