CVE-2026-54563 | Cloudreve is a self-hosted file management and sharing syste… | CVSS 7.1 HIGH

Description

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 decoded request suffix to the account root with fs.URI.JoinRaw without checking containment, allowing the scoped credential to read and list files outside the configured folder and writable credentials to create, overwrite, move, or delete them. This issue is reported as fixed in version 4.16.1.

Metadata

CVE ID: CVE-2026-54563
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-15 19:04 UTC
Published: 2026-07-15 14:38 UTC
Last updated: 2026-07-15 15:34 UTC
Primary CWE: CWE-863
CWE-863: Incorrect Authorization
Vendor / Product: cloudreve / cloudreve
Sources: cve.org · NVD

Severity & Metrics

7.1 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
cloudreve	cloudreve	—	< 4.16.1

Weakness (CWE)

CWE	Source	Description
CWE-863	cna	CWE-863: Incorrect Authorization

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.1	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References (1)

https://github.com/cloudreve/cloudreve/security/advisories/GHSA-w5fv-7x5q-g8qp https://github.com/cloudreve/cloudreve/security/advisories/GHSA-w5fv-7x5q-g8qp