# CVE-2026-55496

## Summary

- **CVE ID:** CVE-2026-55496
- **Severity:** MEDIUM
- **CVSS Score:** 4.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
- **CWE:** CWE-200, CWE-359
- **Published:** Jul 31, 2026
- **Last Modified:** Jul 31, 2026

## Description

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 Products

- cloudreve — cloudreve (4.17.0)

## References

- [CNA](https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv)
- [CNA](https://github.com/cloudreve/cloudreve/commit/7e1289d552794bdbeb551be78456115c87dcb3da)
- [CNA](https://github.com/cloudreve/cloudreve/releases/tag/4.17.0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.26%
- **EPSS Percentile:** 18.3

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._