{"id":"CVE-2026-77516","summary":"MaxKB: Missing per-tool authorization in the agent and workflow tool-dispatch path","details":"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 tool_ids, skill_tool_ids, or mcp_tool_ids and execute it through the agent or workflow dispatch path. The dispatch path does not reapply the per-tool grant enforced by dedicated tool routes, and tool execution decrypts server-side init_params, allowing the caller to receive credentials carried by the denied tool. No fixed version is available as of this review.","aliases":["GHSA-383v-fx78-pphm"],"modified":"2026-09-23T03:47:27.837998966Z","published":"2026-09-21T20:40:44.213Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-639","CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77516.json"},"references":[{"type":"ADVISORY","url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-383v-fx78-pphm"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77516.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77516"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/1panel-dev/maxkb","events":[{"introduced":"c96de7a5f536909aef37fae92f97f62798eb1373"},{"fixed":"20f27c321d4a622a0e4d91a49700a6ccef3652f4"}],"database_specific":{"extracted_events":[{"introduced":"2.0.0"},{"last_affected":"2.9.2"},{"fixed":"2.9.2"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v2.9.1","v2.9.0","v2.8.1","v2.8.0","v2.7.0","v2.6.1","v2.6.0","v2.5.0","v2.4.0","v2.3.0","v2.2.0","v2.1.0","v2.0.2","v2.0.1","v2.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77516.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}