CVE-2026-30915

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

Affected packages (3)

• Go/github.com/drakkan/sftpgofrom 0
• Go/github.com/drakkan/sftpgo/v2>= 2.3.0, < 2.7.1
• Go/github.com/drakkan/sftpgo/v2>= 2.3.0, < 2.7.1

CVSS scores

References (4)

• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-30915
• PATCHhttps://github.com/drakkan/sftpgo
• WEBhttps://github.com/drakkan/sftpgo/security/advisories/GHSA-m83q-5wr4-4gfp
• WEBhttps://pkg.go.dev/vuln/GO-2026-4697