PYSEC-2026-2709 Open WebUI has Broken Access Control in Tool Valves

Summary Broken Access Control in Tool Valves Open WebUI supports function calling through "Tools". Function calling allows an LLM to reliably connect to external tools and interact with external APIs. Exemplary use-cases include connecting to an internal knowledge base, retrieving emails from an...

Open WebUI has Broken Access Control in Tool Valves

Summary Broken Access Control in Tool ValvesOpen WebUI supports function calling through "Tools". Function calling allows an LLM to reliably connect to external tools and interact with external APIs. Exemplary use-cases include connecting to an internal knowledge base, retrieving emails from an...

Open WebUI's Insecure Direct Object Reference (IDOR) allows access to other users' memories

SummaryAny authenticated user can read other users' private memories via /api/v1/retrieval/query/collection DetailsVulnerability 1: Missing authorization in collection queryingIn backend/openwebui/routers/retrieval.py, the querycollectionhandler function accepts a list of collectionnames but...

PYSEC-2026-2764 Open WebUI vulnerable to Path Traversal in `POST /api/v1/audio/transcriptions`

Summary An unsanitised filename field in the speech-to-text transcription endpoint allows any authenticated non-admin user to trigger a FileNotFoundError whose message — including the server's absolute DATADIR path — is returned verbatim in the HTTP 400 response body, confirming information...

Rucio WebUI has a Reflected Cross-site Scripting Vulnerability

SummaryA reflected Cross-site Scripting vulnerability was located in the rendering of the ExceptionMessage of the WebUI 500 error which could allow attackers to steal login session tokens of users who navigate to a specially crafted URL. DetailsThe WebUI error message renders ExceptionMessage whi...

Rucio WebUI has a Stored Cross-site Scripting (XSS) vulnerability its Identity Name

SummaryA stored Cross-site Scripting XSS vulnerability was identified in the Identity Name of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of the WebU...

Rucio WebUI has Stored Cross-site Scripting (XSS) in RSE Metadata

SummaryA stored Cross-site Scripting XSS vulnerability was identified in the RSE metadata of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of the WebUI...

Rucio WebUI has a Stored Cross-site Scripting (XSS) Vulnerability in its Custom RSE Attribute

SummaryA stored Cross-site Scripting XSS vulnerability was identified in the Custom RSE Attribute of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of t...

PYSEC-2026-3055 Rucio WebUI has a Stored Cross-site Scripting (XSS) Vulnerability in its Custom RSE Attribute

Summary A stored Cross-site Scripting XSS vulnerability was identified in the Custom RSE Attribute of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of...

PYSEC-2026-3057 Rucio WebUI has Stored Cross-site Scripting (XSS) in RSE Metadata

Summary A stored Cross-site Scripting XSS vulnerability was identified in the RSE metadata of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of the WebU...

PYSEC-2026-3056 Rucio WebUI has a Reflected Cross-site Scripting Vulnerability

Summary A reflected Cross-site Scripting vulnerability was located in the rendering of the ExceptionMessage of the WebUI 500 error which could allow attackers to steal login session tokens of users who navigate to a specially crafted URL. Details The WebUI error message renders ExceptionMessage...

PYSEC-2026-3058 Rucio WebUI Vulnerable to Stored Cross-site Scripting (XSS) through Custom Rule Function

Summary A stored Cross-site Scripting XSS vulnerability was identified in the Custom Rules function of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of...

PT-2026-59360

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...

The vulnerability of the innerHTML component of the Open WebUI web interface allows a attacker to execute arbitrary JavaScript code.

The vulnerability of the innerHTML component in the Open WebUI-based web interface is related to the lack of measures taken to protect the structure of the web page. Exploiting this vulnerability allows a remote attacker to execute arbitrary JavaScript code...

PT-2026-59366

Summary Blind server side request forgery SSRF via the PDF generate function. The finding resulted from a penetration test for a customer. It is suspected that the root cause of the issue lies within the core of Open WebUI, which is why it is being reported as a security issue here. Tested on Ope...

The vulnerability of the _sanitize_proxy_path() function (backend/open_webui/routers/terminals.py) in the Open WebUI AI-based web interface allows a attacker to compromise the confidentiality of protected information.

The vulnerability of the sanitizeproxypath function backend/openwebui/routers/terminals.py in the Open WebUI AI-based web interface is related to an incorrect restriction on the path name of the restricted directory. Exploiting this vulnerability could allow a malicious actor to compromise the...

The vulnerability of the Open WebUI web interface, related to the lack of authentication, allows a intruder to gain unauthorized access to protected information.

The vulnerability of the Open WebUI web interface lies in the lack of authentication when processing the endpoint /api/v1/channels/id/members with a known channel UUID. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information...

The vulnerability of the Open WebUI web interface, related to the lack of permission checking, allows a violator to gain read access, modify data, and increase their privileges.

The vulnerability of the Open WebUI web interface relates to the lack of permission checking for workspace.models.import. Exploiting this vulnerability can allow an attacker, operating remotely, to gain read access, modify data, and enhance their privileges by sending a specially crafted POST...

The vulnerability in the Open WebUI web interface relates to the disclosure of information in the erroneous data area, allowing an intruder to obtain unauthorized access to the protected information.

The vulnerability of the Open WebUI artificial intelligence-based web interface is related to the disclosure of information in the erroneous data area. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access to protected information...

PT-2026-59678

Summary A stored Cross-site Scripting XSS vulnerability was identified in the Custom Rules function of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of...