Description
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.
Published: 2026-09-27
Score: 6.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sun, 27 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Cloudreve before 4.16.1 Authentication Bypass via Cached Context Hint
First Time appeared Cloudreve
Cloudreve cloudreve
Weaknesses CWE-863
CPEs cpe:2.3:a:cloudreve:cloudreve:*:*:*:*:*:*:*:*
Vendors & Products Cloudreve
Cloudreve cloudreve
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

Cloudreve Cloudreve
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-27T17:02:38.060Z

Reserved: 2026-09-27T16:38:56.427Z

Link: CVE-2026-101056

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-09-27T18:16:31.667

Modified: 2026-09-27T18:16:31.777

Link: CVE-2026-101056

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-27T18:30:18Z

Weaknesses