CVE-2026-55495
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Jul 31, 2026
Vendor
unknown
Description
Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, the WOPI PUT_RELATIVE handler passes X-WOPI-SuggestedTarget to URI.JoinRaw as a path rather than a filename, allowing slash and dot-dot segments to escape the source file directory and create or conditionally overwrite files elsewhere in the same owner account. This issue is fixed in version 4.17.0.