{"id":"CVE-2026-57124","aliases":["GHSA-p75f-6fp4-p57w","PYSEC-2026-3517"],"url":"https://o3.security/vulnerability/CVE-2026-57124","summary":"PraisonAI UI MCP connect endpoint allows unauthenticated local command execution","details":"PraisonAI is a multi-agent teams system. Prior to 4.6.59, the default UI host applications expose POST /api/mcp/connect without mandatory authentication and accept caller-controlled command and args values that PraisonAIUI passes to StdioMCPClient to start a local process. Because the UI commands bind to 0.0.0.0 by default, a reachable unauthenticated client can execute commands as the UI service account even when the MCP handshake later fails. This vulnerability is fixed in 4.6.59.","published":"2026-09-14T15:04:54.198Z","modified":"2026-09-16T03:47:09.978175684Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"praisonai","fixedVersion":"4.6.59"}],"fix":{"url":"https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9","label":"MervinPraison/PraisonAI@2adfe7e"},"references":[{"type":"WEB","url":"https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57124.json"},{"type":"ADVISORY","url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-p75f-6fp4-p57w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57124"},{"type":"FIX","url":"https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-16T03:47:09.978175684Z"}}