Improper Authorization in Open WebUI - CVE-2026-59226
Published: June 30, 2026
Vulnerability identifier: #VU135954
CSH Severity: Low
CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59226
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper authorization in the background automation scheduler when executing due scheduled automations for a deactivated owner. A remote user can keep a previously created automation scheduled and let it continue running after account deactivation to cause a denial of service.
Exploitation requires a previously created active automation and a later transition of the account to the pending role.
Affected software
Open WebUI
How to mitigate CVE-2026-59226
Install security update from vendor's website.
Open WebUI - update to 0.10.0