PT-2026-98944

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.2 Description An authorization bypass allows an authenticated agent to read knowledge base answer content without proper authorization. The issue exists in a GraphQL mutation used to transform knowledge base answer...

PT-2026-98899

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.2 Description An issue with permission checks in the knowledge base management area allows users with limited read permissions to interact with items outside their assigned access scope due to incomplete data...

CVE-2026-84463: Improper Neutralization of Input During Web Page Generation

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, a user with Knowledge Base editing rights for a category can embed a video widget in a published answer with a specially crafted value. When the answer is rendered, that value is inserted into the page's HTML...

CVE-2026-55217: Improper Authorization

GLPI is a free asset and IT management software package. From 0.85 until 10.0.26 and 11.0.8, a low-privileged authenticated user can create, update, or delete knowledge base comments and translations without the required authorization for the affected content. This issue is fixed in versions 11.0...

CVE-2026-56724: Authorization Bypass Through User-Controlled Key

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, summary An issue with permission checks in the knowledge base management area has been identified. Under certain conditions, data validation for linked items was not fully enforced. This could have allowed users...

PT-2026-96259

Name of the Vulnerable Software and Affected Versions MaxKB versions prior to 2.10.2-lts Description Management chat-record routes authorize the path application id but load records using global chat id and chat record id values without verifying if the chat belongs to the authorized application...

CVE-2026-54504

MCP Documentation Server is a local-first document management and semantic search server for AI coding agents. From 1.13.0 until 1.13.1, the automatically started Web UI in src/server.ts calls startWebServer in src/web-server.ts with STARTWEBUI enabled by default and WEBPORT set to 3080...

EUVD-2026-82392

MCP Documentation Server is a local-first document management and semantic search server for AI coding agents. From 1.13.0 until 1.13.1, the automatically started Web UI in src/server.ts calls startWebServer in src/web-server.ts with STARTWEBUI enabled by default and WEBPORT set to 3080...

EUVD-2026-75177

Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends...

Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends

Summary The built-in knowledge search tool returns knowledge bases the calling user has no access to. The tool works out which knowledge bases the caller may read and hands that set to the vector store as a search filter, and that filter is the only access control on the path. Most of the shipped...

Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion

Summary External knowledge connections are created and owned by administrators, and are shared by every external knowledge base bound to them. Deleting an external knowledge base also removed that connection from the instance configuration, with no check on the caller's role and no check for othe...

EUVD-2026-75183

Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion...

Incorrect Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Incorrect Authorization in the knowledge base delete handler process. An attacker can remove instance-wide configuration managed by administrators by sending a DELETE request to the relevant API endpoint with...

CVE-2026-87998

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/id/delete in backend/openwebui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection...

CVE-2026-87998 Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/id/delete in backend/openwebui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection...

CVE-2026-87998

Open WebUI (versions 0.10.0 through 0.11.1 ) contains an authorization flaw in the knowledge base deletion endpoint (DELETE /api/v1/knowledge/{id}/delete in backend/open_webui/routers/knowledge.py). The endpoint validates permissions against the knowledge base itself but then removes the associat...

CVE-2026-87998 Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/id/delete in backend/openwebui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection...

CVE-2026-87998 Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/id/delete in backend/openwebui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection...

CVE-2026-87017

Open WebUI , a self-hosted AI platform, contains an information disclosure flaw in its built-in knowledge search tool . From version 0.7.0 through 0.11.1 , the tool passed the caller's readable knowledge identifiers through a metadata filter, but the search methods in eleven shipped vector backen...

CVE-2026-87017 Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.1, the built-in knowledge search tool passed the caller's readable knowledge identifiers through a metadata filter, but the search methods in eleven shipped vector backends ignored that...