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Vulnerability record · CVE-2026-57139 · published 15 September 2026

CVE-2026-57139: Missing authentication for critical function vulnerability

PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp() in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest() without authentication or authorization. Any network client that can reach the port can call tools/list, tools/call, resources/read, or prompts/get, causing registered handlers to run with server-side credentials and process privileges or disclose registered data. An initial remediation was released in version 1.7.2.

9.8 CVSS 3.1 Critical EPSS 0.75% · top 46.8% CWE-306 · Missing authentication for critical functionCWE-862 · Missing authorization Deferred
9.8CVSS 3.1 base score
0.75%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Sep 2026Last modified by NVD

Description

PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp() in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest() without authentication or authorization. Any network client that can reach the port can call tools/list, tools/call, resources/read, or prompts/get, causing registered handlers to run with server-side credentials and process privileges or disclose registered data. An initial remediation was released in version 1.7.2.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-j4f3-55x4-r6q2
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-j4f3-55x4-r6q2

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Source: NIST National Vulnerability Database (record CVE-2026-57139), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.