{"id":"CVE-2026-77518","title":"MaxKB is an open-source AI assistant for enterprise","summary":"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 tool_id in the same workspace can retrieve the hidden tool through the tool-detail route because …","severity":"medium","cvss":5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","cwe":["CWE-862"],"vendor":"1Panel-dev","product":"MaxKB","affected":["MaxKB <= 2.10.2-lts"],"published":"2026-09-21","updated":"2026-09-22","sourceUpdated":"2026-09-22T14:17:15.207","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77518","references":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-x65c-w438-c58f","label":"security-advisories@github.com"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.0027,"epssPercentile":0.17074,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-22T13:18:30.466549Z"},"ingestedAt":"2026-09-21T20:52:58.296Z","slug":"CVE-2026-77518","body":"## Overview\n\nMaxKB 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 tool_id 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 list route. The response includes Tool.code, which may contain MCP server configuration and headers, and an attacker who can create or edit an attacker-owned workflow can place the same foreign mcp_tool_id in a workflow mcp-node so workflow debug uses the owner's MCP configuration without verifying permission to use that 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":"twilight","depthScore":40,"depthScoreParts":{"impact":27.5,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":209063,"id":"CVE-2026-77518","ts":1790085894908,"field":"exploit_available","old":"false","new":"true"}]}