Vulnerability · Published Jul 30, 2026 · Assigned by VulnCheck

CVE-2026-10031SFTPGo < 2.7.4 Permission Bypass via Symbolic Link Creation

Medium 5.4

In plain English

A medium-severity incorrect authorization in SFTPGo from drakkan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 91.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
drakkan	SFTPGo	0 – before 2.7.4

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Product Repository product
GitHub Security Advisory (GHSA-fj9v-mxr3-w75w) vendor-advisory
SFTPGo v2.7.4 Release Notes release-notes
https://www.vulncheck.com/advisories/sftpgo-permission-bypass-via-symbolic-link-creation third-party-advisory