CVE-2026-109299
HIGH
7,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM
6,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Description
AI Translation Available
Open WebUI from 0.9.0 before 0.11.4 contains a denial of service vulnerability that allows authenticated users with automations permission to stall the instance by submitting unsatisfiable recurrence rules. Attackers can repeatedly send rules like February 30th to the automations create or update endpoints, blocking the shared event loop for seconds per request.
400
Uncontrolled Resource Consumption
DraftCommon Consequences
Security Scopes Affected:
Availability
Access Control
Other
Potential Impacts:
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Dos: Resource Consumption (Other)
Bypass Protection Mechanism
Other
Applicable Platforms
Technologies:
Not Technology-Specific, AI/ML
https://github.com/open-webui/open-webui/commit/5fb869db221d9599a576e8e2eea9c33…
https://github.com/open-webui/open-webui/security/advisories/GHSA-5w58-mwmh-vf2m
https://www.vulncheck.com/advisories/open-webui-0.9.0-before-0.11.4-denial-of-s…