PT-2026-60181 · Cloudreve · Cloudreve

CVE-2026-54562 · Published 2026-07-15 · Updated 2026-07-30

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Cloudreve versions prior to 4.16.1

Description The remote download workflow allows non-admin users with remote download permissions to fetch internal-only URLs. This occurs because the system accepts user-supplied URLs at the POST '/api/v4/workflow/download' endpoint and passes them to the downloader without blocking loopback, localhost, IPv6 localhost, or redirect-to-loopback targets. Consequently, an attacker can read the response after the internal content is imported into their own files.

Recommendations Update to version 4.16.1.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-54562

GHSA-X756-G4X3-C64M

GO-2026-6023

OPENSUSE-SU-2026:21483-1

Affected Products

Cloudreve

References · 1744

• 🔥 https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54562.json · Exploit
• https://osv.dev/vulnerability/GHSA-x756-g4x3-c64m · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-54562 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:21483-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-54562 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-6023 · Vendor Advisory
• https://github.com/cloudreve/cloudreve · Note
• https://github.com/cloudreve/cloudreve/releases/tag/4.16.1 · Note
• https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312 · Note
• https://suse.com/security/cve/CVE-2025-67499 · Note
• https://suse.com/security/cve/CVE-2026-25726 · Note
• https://suse.com/security/cve/CVE-2026-24005 · Note
• https://suse.com/security/cve/CVE-2025-13821 · Note
• https://suse.com/security/cve/CVE-2026-23845 · Note