PYSEC-2026-2756 Open WebUI: Mass Assignment via FeedbackForm extra=allow Allows Feedback User ID Spoofing and Evaluation Data Manipulation

Mass Assignment in Feedback Creation Allows User ID Spoofing and Evaluation Data Manipulation Summary The POST /api/v1/evaluations/feedback endpoint in Open WebUI v0.9.2 is vulnerable to mass assignment via FeedbackForm, which uses modelconfig = ConfigDictextra='allow'. Due to an insecure...

PYSEC-2026-2706 Open WebUI Vulnerable to Unauthenticated RAG Configuration Disclosure

Vulnerability Type: Information Disclosure / Missing Authentication Severity: Medium Component: backend/openwebui/routers/retrieval.py — getstatus GET / Affected Endpoint: GET /api/v1/retrieval/ Affected Version: Open WebUI main branch — confirmed unpatched through v0.9.2 Authentication Required:...

PYSEC-2026-2747 Open WebUI: Unauthenticated endpoint can trigger embedding generation (cost/DoS)

Summary GET /api/v1/memories/ef is accessible without authentication and executes request.app.state.EMBEDDINGFUNCTION.... This allows any unauthenticated caller to trigger embedding generation which can lead to direct cost exposure if a paid provider is used. Code reference:...

PYSEC-2026-2699 Open WebUI Vulnerable to IDOR: Retrieval API Bypasses Knowledge Base Access Controls

IDOR: Retrieval API Bypasses Knowledge Base Access Controls Author: Andrew Orr Summary validatecollectionaccess PR 22109 checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any authenticated user who...

PYSEC-2026-2994 pyLoad is vulnerable to stored XSS in Downloads view via unsanitized link URL in packages.js template literal

Summary The packages.js template at src/pyload/webui/app/themes/modern/templates/js/packages.js:172 interpolates a stored link URL into a template literal inside single-quoted HTML and then writes the result to the DOM via $div.htmlhtml. No escaping runs between the API value and innerHTML. An...

PYSEC-2026-3421 wger Vulnerable to IDOR: Authenticated Users Can Read Any User's Private Workout Session Data via Template Routine API

Summary Any authenticated user can read another user's private workout session notes, exercise history, and training statistics by calling the /logs/ and /stats/ actions on a routine they do not own. The RoutinePermission class grants read access to any authenticated user when a routine has...

PYSEC-2026-2753 Open WebUI: Missing permission check in files API allows authenticated users to list, access and delete every uploaded file

Summary A missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. Details All files/ related endpoints lack permission checks. Listing all files For example, let's see how file listing ...

PYSEC-2026-2633 mem0 server lacks authentication and authorization controls for its memory creation API endpoint

The mem0 1.0.0 server lacks authentication and authorization controls for its memory creation API endpoint POST /memories. The endpoint allows unauthenticated users to submit arbitrary memory records without verifying their identity or permissions. A remote attacker can exploit this by sending...

PYSEC-2026-2634 mem0 server lacks authentication and authorization controls for its memory deletion API endpoint

The mem0 1.0.0 server lacks authentication and authorization controls for its memory deletion API endpoint DELETE /memories. The endpoint allows unauthenticated users to delete memory records by specifying arbitrary user identifiers e.g., userid, runid, agentid in the request query parameters. A...

PYSEC-2026-2601 LiteLLM has a sandbox escape in custom-code guardrail

Impact The POST /guardrails/testcustomcode endpoint runs user-supplied Python inside a hand-rolled sandbox. The sandbox can be escaped using bytecode-level techniques, allowing arbitrary code execution in the proxy process — which runs as root in the default Docker image. Reaching the endpoint...

PYSEC-2026-2739 Open WebUI's Improper Authorization in Standard Channels Allows Message Updates with Read Permission

Vulnerability Description In standard channels i.e., channels whose channel.type is neither group nor dm, the endpoint POST /api/v1/channels/channelid/messages/messageid/update can be accessed with read permission only. When accesscontrol is set to None, the authorization check hasaccess...,...

PYSEC-2026-2904 PraisonAI ships and generates a legacy API server with authentication disabled by default, allowing unauthenticated workflow execution

Summary PraisonAI ships a legacy Flask API server with authentication disabled by default. When that server is used, any caller that can reach it can access /agents and trigger the configured agents.yaml workflow through /chat without providing a token. Details The vulnerable server is the shippe...

PYSEC-2026-2720 Open WebUI Missing Access Check on Channel Members Endpoint for Standard Channels

Missing Access Check on Channel Members Endpoint for Standard Channels Affected Component Channel members listing endpoint: - backend/openwebui/routers/channels.py lines 445-507, getchannelmembersbyid Affected Versions Current main branch and likely all versions with the channels feature...

PYSEC-2026-2735 Open WebUI's Mass Assignment via Pydantic extra='allow' Allows Creating Folders in Other Users' Accounts

Mass Assignment via Pydantic extra='allow' Allows Creating Folders in Other Users' Accounts Affected Component Folder creation endpoint and form model: - backend/openwebui/models/folders.py lines 72-77, FolderForm with extra='allow' - backend/openwebui/models/folders.py lines 95-106,...

PYSEC-2026-2734 Open WebUI's responses passthrough endpoint lacks access control authorization

Summary The /responses endpoint in the OpenAI router accepts any authenticated user and forwards requests directly to upstream LLM providers without enforcing per-model access control. While the primary chat completion endpoint generatechatcompletion checks model ownership, group membership, and...

PYSEC-2026-2526 OpenStack Ironic has an Incorrect Resource Transfer Between Spheres

An issue was discovered in idrac in OpenStack Ironic before 35.0.1. During import, a user invoking molds can request authorization to be sent to a remote endpoint. The credential forwarded is a time-limited Keystone token which provides access to all OpenStack services Ironic is authorized for; o...

PYSEC-2026-2958 Prefect Unauthenticated Event Injection via /api/events/in WebSocket

A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be...

PYSEC-2026-2956 Prefect Auth Bypass via endswith() Health Check Exemption

A vulnerability was detected in PrefectHQ prefect up to 3.6.21. This impacts the function endswith of the file /api/health of the component Health Check API. Performing a manipulation results in improper authentication. The attack is possible to be carried out remotely. The exploit is now public...

AgentScope vulnerable to Server-Side Request Forgery

A vulnerability was identified in modelscope agentscope up to 1.0.18. Affected by this issue is the function parseurl/prepareimage/openaiaudiototext of the file src/agentscope/tool/multimodality/openaitools.py of the component Cloud Metadata Endpoint. Such manipulation of the argument...

PYSEC-2026-2329 AgentScope vulnerable to Server-Side Request Forgery

A vulnerability was identified in modelscope agentscope up to 1.0.18. Affected by this issue is the function parseurl/prepareimage/openaiaudiototext of the file src/agentscope/tool/multimodality/openaitools.py of the component Cloud Metadata Endpoint. Such manipulation of the argument...