5236 matches found
PT-2026-59336
Summary A Server-Side Request Forgery SSRF vulnerability exists in process picture url in backend/open webui/utils/oauth.py line 1338. The function fetches arbitrary URLs from OAuth picture claims without applying validate url, allowing an attacker to force the server to make HTTP requests to...
PT-2026-59378
Summary A path traversal vulnerability exists in open-webui's cache file serving endpoint that allows any authenticated user to read files from sibling directories outside the intended cache directory, by exploiting an incomplete startswith containment check that lacks a trailing path separator...
PT-2026-59345
Summary Open WebUI v0.6.43 contains a vulnerability in its chat completion API, which allows attackers to bypass tool restrictions, potentially enabling unauthorized actions or access. Details In the chat completion API, the parameters tool ids and tool servers are supplied by the user. These...
PT-2026-59390
Summary The audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHE DIR/audio/transcriptions/.. The /cache/path route serves these files via FileResponse, which sets Content-Type from the on-disk extension and emits no...
PT-2026-59402
Summary Open WebUI lets a user who can create, update, or import workspace models store arbitrary meta.knowledge entries on their model without checking whether they own or can read the referenced files. Open WebUI then treats meta.knowledge entries of type file as an authorization source in two...
PT-2026-59383
Summary A regular user non-admin can view the system prompt of the model which is set by an admin. Details When a regular user non-admin logs into the application, a http://IP:8080/api/models? web request is initiated by the application and in response, it reveals the system prompt of available...
PT-2026-59398
Stored XSS to Account Takeover via Model Profile Images in Open WebUI Affected: Open WebUI tags. On the output side, users.py added a MIME allowlist check and X-Content-Type-Options: nosniff. The fix was applied to UserUpdateForm, UpdateProfileForm, and later to ChannelWebhookForm. Three models...
PT-2026-59339
As part of our research on improving our AI pentest, we have uncovered the following issue in Open WebUI. We've manually verified and tided up the report, but you can also find the original agent finding at the bottom of this report. Summary The channel webhook create/update flow accepts arbitrar...
PT-2026-59379
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...
PT-2026-59400
Summary Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with securityLevel: 'loose', attacker-controlled Mermaid content can be rendered unsafely in this flow. A working paylo...
PT-2026-59621
Summary Several WebUI JSON endpoints enforce weaker permissions than the core API methods they invoke. This allows authenticated low-privileged users to execute MODIFY operations that should be denied by pyLoad's own permission model. Confirmed mismatches: - ADD user can reorder packages/files...
Open WebUI Permission Bypass Privilege Escalation
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...
Open WebUI Information Disclosure
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...
Open WebUI is_user_channelmember() Bypass Access
The vulnerability of the isuserchannelmember function in the Open WebUI artificial intelligence-based web interface is related to the lack of restrictions on access to API keys. Exploiting this vulnerability could allow a malicious actor to bypass existing security mechanisms and gain access to...
Open WebUI get_sources_from_items() Unauthenticated Access
The vulnerability of the getsourcesfromitems function in the Open WebUI AI-based web interface is related to deficiencies in the authentication process. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information through the Range Addressing RAG...
Open WebUI Authentication Bypass
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...
Open WebUI XSS
The vulnerability of the sheettohtml function in the Open WebUI artificial intelligence-based web interface exists due to the lack of measures taken to protect the structure of the web page. Exploiting this vulnerability allows a malicious actor to perform cross-site scripting attacks XSS remotel...
Open WebUI filter_allowed_access_grants Privilege Bypass
The vulnerability of the filterallowedaccessgrants function in the Open WebUI AI-based web interface is related to the lack of authorization during the processing of the final endpoint /api/v1/channels/id/members. Exploiting this vulnerability could allow a malicious actor to increase their...
Open WebUI innerHTML XSS
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...
EUVD-2026-42726
Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to circumvent local-origin IP restrictions on onboarding endpoints by supplying a spoofed X-Forwarded-For header with a loopback address. Attackers can exploit this bypass to...