{"id":"CVE-2026-77516","title":"MaxKB is an open-source AI assistant for enterprise","summary":"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_i…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-639","CWE-862"],"vendor":"1Panel-dev","product":"MaxKB","affected":["MaxKB >= 2.0.0, <= 2.9.2"],"published":"2026-09-21","updated":"2026-09-21","sourceUpdated":"2026-09-21T21:17:10.280","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77516","references":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-383v-fx78-pphm","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-21T20:52:58.294Z","epss":0.00201,"epssPercentile":0.10303,"slug":"CVE-2026-77516","body":"## Overview\n\nMaxKB 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}