---
id: CVE-2026-55496
title: Cloudreve is a self-hosted file management and sharing system
summary: >-
  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 …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
  - CWE-359
vendor: cloudreve
product: github.com/cloudreve/Cloudreve/v4
affected:
  - github.com/cloudreve/Cloudreve/v4 < 4.0.0-20260613023921-7e1289d55279
  - github.com/cloudreve/Cloudreve/v3 <= 3.0.0-20250225100611-da4e44b77af4
patched:
  - github.com/cloudreve/Cloudreve/v4 4.0.0-20260613023921-7e1289d55279
published: '2026-07-31'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:51:43.490'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55496'
references:
  - url: >-
      https://github.com/cloudreve/cloudreve/commit/7e1289d552794bdbeb551be78456115c87dcb3da
    label: security-advisories@github.com
  - url: 'https://github.com/cloudreve/cloudreve/releases/tag/4.17.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv
    label: security-advisories@github.com
  - url: >-
      https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-8r7f-r8hj-r3rv'
tags:
  - nvd
  - ghsa
  - go
epss: 0.00361
epssPercentile: 0.27111
aliases:
  - GHSA-8r7f-r8hj-r3rv
ecosystem: go
ingestedAt: '2026-07-24T21:39:14.954Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-55496)

Affected packages:

- `github.com/cloudreve/Cloudreve/v4 < 4.0.0-20260613023921-7e1289d55279`
- `github.com/cloudreve/Cloudreve/v3 <= 3.0.0-20250225100611-da4e44b77af4`

Patched in:

- `github.com/cloudreve/Cloudreve/v4 4.0.0-20260613023921-7e1289d55279`

Source: https://github.com/advisories/GHSA-8r7f-r8hj-r3rv