CVE-2026-73612

EUVD-2026-57816
File Browser before v2.63.22 fails to validate access rules for descendants during recursive copy, rename, and delete operations, allowing authenticated users to bypass path-based access controls. Attackers can copy, rename, or delete denied files by operating on their allowed parent directory, defeating rule-based isolation for confidentiality and integrity.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
8.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
filebrowserfilebrowser
𝑥
< 2.63.22
CNA
Common Weakness Enumeration
References
https://github.com/filebrowser/filebrowser/commit/72faf6dd3c85628e332d3e567124b86708ce2695
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-77x8-73f4-5485
https://www.vulncheck.com/advisories/file-browser-before-authorization-bypass-via-recursive-operations
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-77x8-73f4-5485