CVE-2026-82237
filebrowser through 2.63.23 Stale Share Link via File Rename
CVSS Score
3.1
EPSS Score
0.0%
EPSS Percentile
0th
filebrowser through 2.63.23 does not remove share records when a shared file is renamed (only deletion triggers share cleanup). The share record is keyed by path, so it survives the rename and remains dormant (returning 404 while the path is empty). When any new, unrelated file later appears at the original shared path — via re-upload, another user with create permission, or a hook — the stale public share link serves that new file under the original link's password and expiry settings, unexpectedly exposing it.
| CWE | CWE-459 |
| Vendor | filebrowser |
| Product | filebrowser |
| Published | Aug 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
filebrowser / filebrowser
0 ≤ 2.63.23
References
Credits
🔍 skeletonsec