Auth bypass in Cloudreve
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…
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L.
Affected products
- Cloudreve — versions >= 4.12.0, < 4.16.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-54560?
- CVE-2026-54560 is a high-severity vulnerability in Cloudreve, classified under Incorrect Authorization. CVSS score: 7.6/10. Published 2026-07-15.
- How severe is CVE-2026-54560?
- High severity. CVSS v3 base score is 7.6 out of 10.