CVE-2026-79917

MaxKB , an open-source enterprise AI assistant, has a missing ownership check in versions 2.7.0 through 2.10.4-lts on the endpoint POST /chat/api/{application_id}/chat/{chat_id}/share_chat. The endpoint verifies that a conversation exists but does not verify that it belongs to the authenticated c...

CVE-2026-79917 MaxKB: Chat share-link endpoint missing owner check: a chat token can publish another user's conversation

MaxKB is an open-source AI assistant for enterprise. In 2.7.0 through 2.10.4-lts, POST /chat/api/applicationid/chat/chatid/sharechat verifies that a conversation exists but does not verify that it belongs to the authenticated chatuserid or to the application bound to the caller's token. An attack...

CVE-2026-79917 MaxKB: Chat share-link endpoint missing owner check: a chat token can publish another user's conversation

MaxKB is an open-source AI assistant for enterprise. In 2.7.0 through 2.10.4-lts, POST /chat/api/applicationid/chat/chatid/sharechat verifies that a conversation exists but does not verify that it belongs to the authenticated chatuserid or to the application bound to the caller's token. An attack...

CVE-2026-77516 MaxKB: Missing per-tool authorization in the agent and workflow tool-dispatch path

MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through toolids, skilltoolids, or mcptoolids and execute it through the agent or workflow...

CVE-2026-77516

MaxKB (open-source enterprise AI assistant) versions 2.0.0 through 2.9.2 are affected by a missing per-tool authorization check in the agent and workflow tool-dispatch path . A lowest-role workspace member who has been denied access to a tool via WorkspaceUserResourcePermission can still bind tha...

CVE-2026-77516 MaxKB: Missing per-tool authorization in the agent and workflow tool-dispatch path

MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through toolids, skilltoolids, or mcptoolids and execute it through the agent or workflow...

CVE-2026-77516 MaxKB: Missing per-tool authorization in the agent and workflow tool-dispatch path

MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through toolids, skilltoolids, or mcptoolids and execute it through the agent or workflow...

EUVD-2026-84157

MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through toolids, skilltoolids, or mcptoolids and execute it through the agent or workflow...

EUVD-2026-84156

MaxKB is an open-source AI assistant for enterprise. In version 2.10.3-lts and earlier, the model parameter form route authorizes the path workspace but ModelSerializer.ModelParams loads and saves a Model by id alone without including workspaceid in the query. An authenticated user with model rea...

CVE-2026-77523 MaxKB: Cross-workspace model parameter form write

MaxKB is an open-source AI assistant for enterprise. In version 2.10.3-lts and earlier, the model parameter form route authorizes the path workspace but ModelSerializer.ModelParams loads and saves a Model by id alone without including workspaceid in the query. An authenticated user with model rea...

CVE-2026-77523

MaxKB (an open-source enterprise AI assistant) is vulnerable to a cross-workspace model parameter form write in versions 2.10.3-lts and earlier . The root cause lies in the model parameter form route, which authorizes the path workspace, but ModelSerializer.ModelParams loads and saves a Model by ...

CVE-2026-77523 MaxKB: Cross-workspace model parameter form write

MaxKB is an open-source AI assistant for enterprise. In version 2.10.3-lts and earlier, the model parameter form route authorizes the path workspace but ModelSerializer.ModelParams loads and saves a Model by id alone without including workspaceid in the query. An authenticated user with model rea...

CVE-2026-77523 MaxKB: Cross-workspace model parameter form write

MaxKB is an open-source AI assistant for enterprise. In version 2.10.3-lts and earlier, the model parameter form route authorizes the path workspace but ModelSerializer.ModelParams loads and saves a Model by id alone without including workspaceid in the query. An authenticated user with model rea...

CVE-2026-77525 MaxKB: Management chat-record routes trust path application_id but load ChatRecord by global chat_id

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, management chat-record routes authorize the path applicationid but load records using global chatid and chatrecordid values without confirming that the chat belongs to the authorized application. A normal user in the...

EUVD-2026-84155

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, management chat-record routes authorize the path applicationid but load records using global chatid and chatrecordid values without confirming that the chat belongs to the authorized application. A normal user in the...

CVE-2026-77525

MaxKB , an open-source enterprise AI assistant, contains an authorization flaw in its management chat-record routes (affects 2.10.2-lts and earlier ). The routes authorize based on the path application_id but load ChatRecord objects using global chat_id and chat_record_id values without verifying...

CVE-2026-77525 MaxKB: Management chat-record routes trust path application_id but load ChatRecord by global chat_id

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, management chat-record routes authorize the path applicationid but load records using global chatid and chatrecordid values without confirming that the chat belongs to the authorized application. A normal user in the...

EUVD-2026-84154

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, a normal workspace user who knows another user's active MCP toolid in the same workspace can retrieve the hidden tool through the tool-detail route because it does not apply the per-resource authorization used by the...

CVE-2026-77518 MaxKB: Known MCP tool IDs expose owner Tool.code and can be referenced by attacker workflows

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, a normal workspace user who knows another user's active MCP toolid in the same workspace can retrieve the hidden tool through the tool-detail route because it does not apply the per-resource authorization used by the...

CVE-2026-77518 MaxKB: Known MCP tool IDs expose owner Tool.code and can be referenced by attacker workflows

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, a normal workspace user who knows another user's active MCP toolid in the same workspace can retrieve the hidden tool through the tool-detail route because it does not apply the per-resource authorization used by the...