CVE-2026-55496
Cloudreve: Information Exposure in `GET /api/v4/user/search`: `SearchActive` omits the active-status predicate, leaking inactive/banned account emails
Impact
Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, GET /api/v4/user/search calls SearchActive without adding a StatusActive predicate and serializes matches at RedactLevelUser, allowing any logged-in user to enumerate email addresses and profile metadata for inactive or banned accounts. The service calls userClient.SearchActive, but despite its name that method filters only by email/nickname keyword and never adds a StatusActive predicate — while the sibling lookups GetActiveByID and GetActiveByDavAccount, defined a few lines above it, do. Search hits are serialized at RedactLevelUser, which includes the email address. This issue is fixed in version 4.17.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/cloudreve/Cloudreve/v4 | < 4.0.0-20260613023921-7e1289d55279 | 4.0.0-20260613023921-7e1289d55279 |
| go | github.com/cloudreve/Cloudreve/v3 | <= 3.0.0-20250225100611-da4e44b77af4 | none recorded |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-8r7f-r8hj-r3rv
- https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv
- https://github.com/cloudreve/cloudreve/commit/7e1289d552794bdbeb551be78456115c87dcb3da
- https://github.com/cloudreve/cloudreve/releases/tag/4.17.0