Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oauth/signin requires only Admin.Read even though GetOauthRedirectService persists caller-supplied OneDrive secret and app_id values, allowing an OAuth token without Admin.Write to modify storage policy credentials. The route is inside the admin group that requires Admin.Read, but it does not add the local Admin.Write guard used by sibling policy mutation routes. Its handler persists attacker-supplied secret and app_id values into the selected OneDrive storage policy before returning an OAuth URL. This issue is fixed in version 4.17.0.
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-hq88-5x99-x3gf | Cloudreve OAuth Admin.Read scope can update OneDrive storage policy credentials |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 31 Jul 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 31 Jul 2026 05:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Cloudreve
Cloudreve cloudreve |
|
| Vendors & Products |
Cloudreve
Cloudreve cloudreve |
Fri, 31 Jul 2026 04:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oauth/signin requires only Admin.Read even though GetOauthRedirectService persists caller-supplied OneDrive secret and app_id values, allowing an OAuth token without Admin.Write to modify storage policy credentials. The route is inside the admin group that requires Admin.Read, but it does not add the local Admin.Write guard used by sibling policy mutation routes. Its handler persists attacker-supplied secret and app_id values into the selected OneDrive storage policy before returning an OAuth URL. This issue is fixed in version 4.17.0. | |
| Title | Cloudreve: OAuth Admin.Read scope can update OneDrive storage policy credentials | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-31T11:09:00.719Z
Reserved: 2026-06-16T22:28:27.063Z
Link: CVE-2026-55502
Updated: 2026-07-31T11:08:28.686Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-31T05:30:07Z
Weaknesses
Github GHSA