GitHub Advisoryadvisory · Go

GHSA-m83q-5wr4-4gfp SFTPGo improperly sanitizes placeholders in group home directories/key prefixes

MEDIUM Published 2026-03-13 Modified 2026-03-24 Official page ↗
Aliases
CVE-2026-30915
Ecosystem
Go
Packages
github.com/drakkan/sftpgo/v2
Severity
Moderate
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weaknesses
CWE-20, CWE-22
Reviewed
2026-03-13

Affected packages

• Go github.com/drakkan/sftpgo/v2: >= 2.3.0, < 2.7.1 → fixed in 2.7.1

Description

Impact SFTPGo versions before v2.7.1 contain an input validation issue in the handling of dynamic group paths, for example, home directories or key prefixes. When a group is configured with a dynamic home directory or key prefix using placeholders like `%username%`, the value replacing the placeholder is not strictly sanitized against relative path components. Consequently, if a user is created with a specially crafted username the resulting path may resolve to a parent directory instead of the intended sub-directory. Patches This issue is fixed in version v2.7.1

Related

Alias · CVE (1)

  • CVE-2026-30915 SFTPGo is an open source, event-driven file transfer solution. vulnerability

Weakness · CWE (2)

  • CWE-20 Improper Input Validation weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness

References