CVE-2026-54560
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.
- Score
- CVSS 3.1 7.6 High
- Status
- Deferred - security-advisories@github.com
- Published
- 2026-07-15
- Last modified
- 2026-07-15
- Weaknesses
- CWE-863
Affected products
References
- https://github.com/cloudreve/cloudreve/commit/ed20843dc3df20a25fcaf6b538647e11c4d68d87
- https://github.com/cloudreve/cloudreve/releases/tag/4.16.1
- https://github.com/cloudreve/cloudreve/security/advisories/GHSA-vgj4-345g-jcf8
