CVE-2026-54562GHSA-X756-G4X3-C64MGO-2026-6023
Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4.16.1, 4.0.0-20260606025411-aaebf317a78f
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: no
- Technical impact: partial
Summary
Cloudreve is a self-hosted file management and sharing system. Prior to 4.16.1, Cloudreve's remote download workflow accepts user-supplied URLs at POST /api/v4/workflow/download and passes them to the configured downloader without blocking loopback, localhost, IPv6 localhost, or redirect-to-loopback targets, allowing a non-admin user with remote download permission to fetch internal-only URLs and read the response after it is imported into the user's own files. This issue is fixed in version 4.16.1.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- cloudreve cloudreve
fixed in 4.16.1
- github.com/cloudreve/Cloudreve/v4Go
fixed in 4.0.0-20260606025411-aaebf317a78f
- github.com/cloudreve/Cloudreve/v3Go
through 3.0.0-20250225100611-da4e44b77af4
- github.com/cloudreve/CloudreveGo
All versions
- github.com/cloudreve/Cloudreve/v3Go
All versions