{"id":"CVE-2026-77519","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-77519","generatedAt":"2026-10-28T09:27:16.021Z","title":"MaxKB is an open-source AI assistant for enterprise.","description":"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_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.","published":"2026-09-21T21:17:11.000Z","lastModified":"2026-09-24T23:19:02.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"cwe":["CWE-613"],"affected":[],"epss":{"score":0.0024,"percentile":0.15038,"date":"2026-10-27","history":[{"date":"2026-09-22","score":0.00201,"percentile":0.10253}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-21T21:17:11.000Z","detail":{"score":"5.4","severity":"MEDIUM","publishedAt":"2026-09-21T21:17:10.633Z"},"summary":"New CVE, medium severity (CVSS 5.4)."}],"references":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r6g6-69fh-c39q","source":"security-advisories@github.com"},{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r6g6-69fh-c39q","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-77519","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}