CVE-2026-30915 — SFTPGo improperly sanitizes placeholders in group home directories/key prefixes

Description (CNA)

SFTPGo is an open source, event-driven file transfer solution. 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. This issue is fixed in version v2.7.1

Affected (CNA)

Vendor / product	Versions
drakkan / sftpgo	affected >= 2.3.0, < 2.7.1

CWE

CWE-22

References

https://github.com/drakkan/sftpgo/security/advisories/GHSA-m83q-5wr4-4gfp

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.