SB2026042442 - Improper Authorization in Open WebUI

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Main Vulnerability Database SB2026042442

SB2026042442 - Improper Authorization in Open WebUI

Published: April 24, 2026

Security Bulletin ID SB2026042442
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Authorization (CVE-ID: CVE-2026-34222)

CWE-ID: CWE-285 - Improper Authorization

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


The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to improper authorization in the Tool Valves endpoint when handling requests to read tool valve data. A remote user can send a crafted request for a tool valve to disclose sensitive information.

Exploitation requires a verified account with at least Member privileges, and tool identifiers are trivial to guess because imported tool IDs are derived from tool names.


Remediation

Install update from vendor's website.

References