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Vulnerabilities CVE-2026-73613

CVE-2026-73613

High
Open
TLP:CLEAR

filebrowser before 2.63.19 Out-of-Scope File Deletion via Symlink

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Description

filebrowser versions before 2.63.19 contain an out-of-scope file deletion vulnerability in the TUS upload cache eviction mechanism that allows authenticated users with only Create permission to delete arbitrary files outside their scope. Attackers can swap an ancestor directory with a symlink during the cache TTL window to redirect the raw os.Remove call to an out-of-scope target, bypassing ScopedFs scope guards and Perm.Delete checks.

Details

CVSS Score
7.2
CVSS Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
Confidence
90%
Published
Aug 13, 2026
Last Modified
Aug 13, 2026
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