CVE-2026-57139PraisonAI MCPServer exposes unauthenticated HTTP tools/call
Updated under an hour ago ()
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It affects MervinPraison PraisonAI. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-306, CWE-862, CWE-1188
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MervinPraison PraisonAI mervinpraison:praisonai (from the name) | from 1.5.0, < 1.7.2 | CNA record |
References
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-j4f3-55x4-r6q2x-refsource-confirm
- https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27x-refsource-misc
- https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.