Open WebUI's Insecure Message Access Breaks Authorization

Description There's an IDOR in the channels message management system that allows authenticated users to modify or delete any message within channels they have read access to. The vulnerability exists in the message update and delete endpoints, which implement channel-level authorization but...

Open WebUI Arbitrary File Write, Delete via Path Traversal

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation ----------------------------------------------- Vulnerability Details --------------------- 1. Discoverer: Taylor Pennington of KoreLogic, Inc. 2. Date Submitted: June 11, 2024 3. Title: Open WebUI Arbitrary File Write, Delete via Path...

GHSA-J3FW-WC48-29G3 Open WebUI Arbitrary File Write, Delete via Path Traversal

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation ----------------------------------------------- Vulnerability Details --------------------- 1. Discoverer: Taylor Pennington of KoreLogic, Inc. 2. Date Submitted: June 11, 2024 3. Title: Open WebUI Arbitrary File Write, Delete via Path...

Insufficient Session Expiration

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Insufficient Session Expiration via misconfiguration of the CORSMiddleware module and improper session management. An attacker can gain unauthorized access and execute arbitrary code by enticing an...

Open WebUI has a CORS misconfiguration and session validation issue

GitHub Security Lab GHSL Vulnerability Report, open-webui: GHSL-2024-174, GHSL-2024-175 The GitHub Security Lab team has identified potential security vulnerabilities in open-webui. We are committed to working with you to help resolve these issues. In this report you will find everything you need...

PT-2026-39670

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.6.10 Description An issue exists where the application does not validate or sanitize the filename of uploaded audio files, deriving it directly from the original HTTP upload request. This allows users to include...

CVE-2026-45396

creationtimestamp| type| source ---|---|--- 2026-05-10 19:34:32+00:00| published-proof-of-concept| https://github.com/open-webui/open-webui/security/advisories/GHSA-rjmp-vjf2-qf4g...

CVE-2026-45395

creationtimestamp| type| source ---|---|--- 2026-05-10 19:34:01+00:00| published-proof-of-concept| https://github.com/open-webui/open-webui/security/advisories/GHSA-p4fx-23fq-jfg6...

PT-2026-41181

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.8.9 Description When a non-administrative user logs into the application, a web request to the '/api/models?' endpoint is initiated. The response from this request reveals the system prompts of available models...

PT-2026-41175

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.5.7 Description An issue exists where a user can modify another user's model regardless of whether its visibility is set to Private. By altering access permissions during the editing process, unauthorized access...

PT-2026-41187

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.5 Description An Insecure Direct Object Reference IDOR exists in the Channels feature, which allows any member of a channel to modify messages sent by other members, including administrators. In the update...

CVE-2026-45346

creationtimestamp| type| source ---|---|--- 2026-05-09 22:20:05+00:00| published-proof-of-concept| https://github.com/open-webui/open-webui/security/advisories/GHSA-r29h-37fj-x2w6...

CVE-2026-45338

creationtimestamp| type| source ---|---|--- 2026-05-09 19:11:52+00:00| published-proof-of-concept| https://github.com/open-webui/open-webui/security/advisories/GHSA-24c9-2m8q-qhmh...

CVE-2026-45314

creationtimestamp| type| source ---|---|--- 2026-05-09 08:02:43+00:00| published-proof-of-concept| https://github.com/open-webui/open-webui/security/advisories/GHSA-3856-3vxq-m6fc...

PT-2026-41167

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.3 Description The channel webhook create and update flow accepts arbitrary profile image url values, including base64-encoded SVG payloads. The endpoint '/api/v1/channels/webhooks/webhook id/profile/image'...

Arbitrary File Upload

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Arbitrary File Upload via the storedoc process. An attacker can write arbitrary files to locations outside the intended upload directory by supplying crafted filenames containing path traversal sequences in t...

Open WebUI Vulnerable to Arbitrary File Upload and Path Traversal

CONFIDENTIAL KL-CAN-2024-002 Vulnerability Details | | Field | Value | |---|-------|-------| | 1 | Discoverer | Jaggar Henry & Sean Segreti of KoreLogic, Inc. | | 2 | Date Submitted | 2024.03.12 | | 3 | Title | Open WebUI Arbitrary File Upload + Path Traversal | | 5 | Affected Vendor | Open WebUI...

Open WebUI has Improper Authorization Control

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation --- Vulnerability Details | | Field | Value | |---|-------|-------| | 1 | Discoverer | Taylor Pennington of KoreLogic, Inc. | | 2 | Date Submitted | June 11, 2024 | | 3 | Title | Open WebUI Improper Authorization Control | | 5 | Affecte...

GHSA-4VG5-RP28-GVJF Open WebUI has Improper Authorization Control

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation --- Vulnerability Details | | Field | Value | |---|-------|-------| | 1 | Discoverer | Taylor Pennington of KoreLogic, Inc. | | 2 | Date Submitted | June 11, 2024 | | 3 | Title | Open WebUI Improper Authorization Control | | 5 | Affecte...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization in the authentication process. An attacker can gain unauthorized access to user-level API endpoints by registering an account, obtaining a valid JWT while in a pending role, and using th...