---
id: CVE-2026-101056
title: >-
  Cloudreve before 4.16.1 fails to revalidate share access when restoring cached
  navigator state from a context_hint UUID
summary: >-
  Cloudreve before 4.16.1 fails to revalidate share access when restoring cached
  navigator state from a context_hint UUID. Attackers who previously had valid
  share access can replay the cached hint to generate signed file URLs for up to
  30…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-863
vendor: cloudreve
product: cloudreve
affected:
  - cloudreve < 4.16.1
published: '2026-09-27'
updated: '2026-09-27'
sourceUpdated: '2026-09-27T18:16:31.777'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101056'
references:
  - url: >-
      https://github.com/cloudreve/cloudreve/security/advisories/GHSA-vx2m-jpxr-xv7w
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/cloudreve-before-4.16.1-authentication-bypass-via-cached-context-hint
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-27T17:56:02.212Z'
---

## Overview

Cloudreve before 4.16.1 fails to revalidate share access when restoring cached navigator state from a context_hint UUID. Attackers who previously had valid share access can replay the cached hint to generate signed file URLs for up to 300 seconds after the share is deleted, expires, or reaches zero remaining downloads.

## Remediation

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