CVE-2026-101051

EUVD-2026-87980
Cloudreve before 4.16.1 fails to properly sanitize file paths returned by remote downloaders, allowing authenticated users to create files outside the selected destination directory. Attackers can exploit path traversal sequences in downloader metadata to write files to unexpected locations within accessible namespaces.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
3.1 LOW
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
cloudrevecloudreve
𝑥
< 4.16.1
CNA
Common Weakness Enumeration
References
https://github.com/cloudreve/cloudreve/security/advisories/GHSA-w8j7-39hp-8x59
https://www.vulncheck.com/advisories/cloudreve-before-4.16.1-path-traversal-via-remote-download