CVE-2025-63681
Medium · 4.3open-webui is Vulnerable to Incorrect Access Control
CVSS
4.3
EPSS
0.3%
Published
Dec 4, 2025
CISA due date
—
The record
open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop arbitrary LLM response tasks.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| PyPI | open-webui | 0 | No fix |
Related vulnerabilities
- GHSA-frv8-gffc-37px open-webui is Vulnerable to Incorrect Access Control Same vulnerability
- CVE-2026-44721 Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely… Also affects open-webui
- GHSA-gf5m-wcrh-7928 open-webui Vulnerable to Stored XSS via Model Description Also affects open-webui
- GHSA-c6xv-rcvw-v685 Open WebUI vulnerable to Server-Side Request Forgery (SSRF) via Arbitrary URL Processing… Also affects open-webui
- CVE-2025-65958 Open WebUI vulnerable to Server-Side Request Forgery (SSRF) via Arbitrary URL Processing… Also affects open-webui
- GHSA-cm35-v4vp-5xvx Open WebUI Affected by an External Model Server (Direct Connections) Code Injection via… Also affects open-webui
- GHSA-w7xj-8fx7-wfch Open WebUI vulnerable to Stored DOM XSS via prompts when 'Insert Prompt as Rich Text' is… Also affects open-webui
- CVE-2025-64496 Open WebUI Affected by an External Model Server (Direct Connections) Code Injection via… Also affects open-webui