CVE-2026-101056
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductGithub.com/cloudreve/cloudreve/v4
PublishedSep 27, 2026
First seenSep 27, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/cloudreve/Cloudreve/v4Go | v ≤ 4.0.0-20260606032813-26b6b1044b02, No range specified | — |
| github.com/cloudreve/CloudreveGo | No range specified | — |
| github.com/cloudreve/Cloudreve/v3Go | No range specified | — |
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