What is CVE-2026-54563?

CVE-2026-54563 is a high-severity vulnerability in Cloudreve, classified under Incorrect Authorization. CVSS score: 7.1/10. Published 2026-07-15.

How severe is CVE-2026-54563?

High severity. CVSS v3 base score is 7.1 out of 10.

Auth bypass in Cloudreve

CVE-2026-54563

Cloudreve is a self-hosted file management and sharing system. Prior to 4.16.1, a Cloudreve WebDAV account rooted at a configured folder can send paths such as /dav/%2e%2e/outside.txt because stripPrefix in pkg/webdav/webdav.go joins the d…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.

Affected products

Cloudreve — versions < 4.16.1

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54563?: CVE-2026-54563 is a high-severity vulnerability in Cloudreve, classified under Incorrect Authorization. CVSS score: 7.1/10. Published 2026-07-15.
How severe is CVE-2026-54563?: High severity. CVSS v3 base score is 7.1 out of 10.