{"id":"CVE-2026-77519","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, the /chat/api/mcp authentication path looks up an ApplicationApiKey using only its secret and active status, without enforcing the is_permanent and expire_ti…","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-613"],"vendor":"1Panel-dev","product":"MaxKB","affected":["MaxKB <= 2.10.2-lts"],"published":"2026-09-21","updated":"2026-09-24","sourceUpdated":"2026-09-24T23:19:01.700","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77519","references":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r6g6-69fh-c39q","label":"security-advisories@github.com"},{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r6g6-69fh-c39q","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-24T22:41:50.977189Z"},"epss":0.0024,"epssPercentile":0.15038,"ingestedAt":"2026-09-21T20:52:58.300Z","slug":"CVE-2026-77519","body":"## Overview\n\nMaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, the /chat/api/mcp authentication path looks up an ApplicationApiKey using only its secret and active status, without enforcing the is_permanent and expire_time checks used by the standard chat API. A previously valid, non-permanent application key that remains active after expiration can initialize the MCP endpoint, list the published application's tool metadata, invoke tools/call, and create durable application_chat and application_chat_record state even though /chat/api/open rejects the same key. 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":42,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":210428,"id":"CVE-2026-77519","ts":1790290511905,"field":"exploit_available","old":"false","new":"true"}]}