filebrowser versions before v2.63.21 fail to canonicalize paths before evaluating access rules, allowing authenticated users to bypass administrator-defined deny rules using case-variant or backslash-separated paths. Attackers can request files with alternate path representations that match no rule but resolve to the same filesystem object, gaining unauthorized access to denied files within their scope.
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History
Fri, 14 Aug 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | filebrowser versions before v2.63.21 fail to canonicalize paths before evaluating access rules, allowing authenticated users to bypass administrator-defined deny rules using case-variant or backslash-separated paths. Attackers can request files with alternate path representations that match no rule but resolve to the same filesystem object, gaining unauthorized access to denied files within their scope. | |
| Title | filebrowser before v2.63.21 Access Rule Bypass via Path Canonicalization | |
| Weaknesses | CWE-41 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-14T11:35:40.774Z
Reserved: 2026-08-10T15:13:41.486Z
Link: CVE-2026-72835
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