CVE-2026-54009 Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, POST /api/chat/completions accepts an imageurl.url value that, when it does NOT start with http://, https://, or data:image/, is interpreted as a file id and resolved against the...

CVE-2026-54009

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, POST /api/chat/completions accepts an imageurl.url value that, when it does NOT start with http://, https://, or data:image/, is interpreted as a file id and resolved against the...

CVE-2026-54009 Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, POST /api/chat/completions accepts an imageurl.url value that, when it does NOT start with http://, https://, or data:image/, is interpreted as a file id and resolved against the...

EUVD-2026-38532

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

EUVD-2026-38521

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, the ydoc:document:join Socket.IO handler checks note ownership only when the documentid starts with note: colon. However, the YdocManager storage layer normalizes all document IDs b...

CVE-2026-33760 Langflow: IDOR/BOLA in Monitor API — Missing Ownership Enforcement on 7 Endpoints

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessions, build artifacts, and LLM transaction logs — without...

CVE-2026-56104 Chainlit < 2.10.1 Session Hijacking via WebSocket Session Restoration

Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to restore and inherit authenticated user sessions by presenting a valid sessionId during WebSocket session restoration without ownership verification. Attackers can exploit the...

CVE-2026-56424

MISP core contained multiple broken access-control flaws where authorization checks were performed against the wrong entity, or where ownership/editability checks were missing on write paths. In affected subsystems, a lower-privileged authenticated user with the relevant feature permission could...

CVE-2026-56423

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

EUVD-2026-38226

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

PT-2026-51307

Name of the Vulnerable Software and Affected Versions MISP Core affected versions not specified Description Broken access-control checks exist in the bulk deletion flows for Event Reports and Sharing Groups. The deleteSelection handlers authorized deletions using broad role-level permissions...

PT-2026-51308

Name of the Vulnerable Software and Affected Versions MISP core affected versions not specified Description Broken access-control flaws exist where authorization checks are performed against incorrect entities or ownership and editability checks are missing on write paths. This allows a...

Langflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attackers to Access Another User's Flow

Summary Insecure Direct Object Reference IDOR vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. Details The vulnerability exists in the getflowbyidorendpointname helper...

GHSA-6WX8-W4F5-WWCR Concurrent Ruby: ReadWriteLock allows wrong-thread write release and stray read-release counter corruption

Summary Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can then enter its critical section while the first writer is still...

PT-2026-51099

Name of the Vulnerable Software and Affected Versions Langflow versions prior to 1.9.1 Description An Insecure Direct Object Reference IDOR issue exists in the /api/v1/responses endpoint. This occurs because the get flow by id or endpoint name function queries the database using a flow ID without...

PraisonAI: Missing ownership check on DELETE endpoints allows members to delete others' content in Platform API

Summary A workspace member can permanently delete any resource — projects, agents, issues, labels, issue dependencies, and issue-label attachments — created by the workspace owner or other members. All six content DELETE endpoints enforce workspace membership but perform no ownership or role chec...

GHSA-RH39-9C67-59MH PraisonAI: Missing ownership check on DELETE endpoints allows members to delete others' content in Platform API

Summary A workspace member can permanently delete any resource — projects, agents, issues, labels, issue dependencies, and issue-label attachments — created by the workspace owner or other members. All six content DELETE endpoints enforce workspace membership but perform no ownership or role chec...

CVE-2026-55198

Hermes WebUI prior to 0.51.443 contains an authorization bypass in the session export endpoint. The _handle_session_export handler in api/routes.py fails to verify active-profile ownership before serializing session data, allowing authenticated users to exfiltrate transcripts from other profiles ...

EUVD-2026-37779

Hermes WebUI before 0.51.443 contains an authorization bypass vulnerability in the session export endpoint that allows authenticated users to access sessions from other profiles. The handlesessionexport handler in api/routes.py fails to verify active-profile ownership before serializing session...

GHSA-9C59-2MVC-VFR8 Langflow: IDOR/BOLA in Monitor API — Missing Ownership Enforcement on 7 Endpoints

Summary Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessions, build artifacts, and LLM transaction logs — without verifying that the authenticated requester owns the targeted resource. Any authenticated...