SB20260408136 - Improper access control in FileBrowser

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Main Vulnerability Database SB20260408136

SB20260408136 - Improper access control in FileBrowser

Published: April 8, 2026

Security Bulletin ID SB20260408136
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: CVE-2026-29188)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to delete arbitrary files and directories within their scope.

The vulnerability exists due to improper access control in the TUS DELETE endpoint when handling DELETE requests to /api/tus/{path}. A remote attacker can send a specially crafted sequence of TUS requests to delete arbitrary files and directories within their scope.

Exploitation requires a multi-user deployment where deletion is restricted for some users, and the issue can be triggered by initiating a TUS upload for the target path before issuing the DELETE request.


Remediation

Install update from vendor's website.

References