VULNERABILITY INTELLIGENCE

CVE-2026-55495

CVSS score4.3 MEDIUM
EPSS probability0.38%
CISA KEVNot currently listed
Published2026-07-31
Last modified2026-09-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-22

Primary references