PT-2026-60180 · Cloudreve · Cloudreve

Published

2026-07-15

·

Updated

2026-07-15

·

CVE-2026-54560

CVSS v3.1

7.6

High

VectorAV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Cloudreve is a self-hosted file management and sharing system. From 4.12.0 until 4.16.1, Cloudreve's OAuth access tokens are issued without the OAuth client id claim, so the JWT verifier does not load token scopes into request context and RequiredScopes treats the request like non-scoped session authentication, allowing a low-scope OAuth access token to call APIs requiring higher scopes such as file, share, workflow, user setting, WebDAV account, and potentially admin scopes. This issue is fixed in version 4.16.1.

Exploit

Fix

Incorrect Authorization

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-54560

Affected Products

Cloudreve