{"id":"CVE-2026-77519","summary":"MaxKB: Expired application API keys remain usable on `/chat/api/mcp`","details":"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.","aliases":["GHSA-r6g6-69fh-c39q"],"modified":"2026-09-26T03:30:21.482746977Z","published":"2026-09-21T20:26:27.820Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77519.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-613"]},"references":[{"type":"ADVISORY","url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r6g6-69fh-c39q"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77519.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77519"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/1panel-dev/maxkb","events":[{"introduced":"0"},{"last_affected":"6951bf3d126521a2ba959b2e3d623f2fe4d03bd6"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"2.10.2-lts"}]}}],"versions":["v2.10.2-lts","v2.10.0-lts","v2.9.2","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","v1.10.4-lts","v1.10.3-lts","v1.10.2-lts","v1.10.1-lts","v1.10.0-lts","v1.9.0","v1.7.0","v1.6.1","v1.6.0","v1.5.0","v1.4.0","v1.3.0","v1.2.1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.1","v1.0.0","v0.9.1","v0.9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77519.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"}]}