PraisonAI is a multi-agent teams system. Prior to 4.5.128, the WSGI-based recipe registry server (server.py) reads the entire HTTP request body into memory based on the client-supplied Content-Length header with no upper bound. Combined with authentication being disabled by default (no token configured), any local process can send arbitrarily large POST requests to exhaust server memory and cause a denial of service. The Starlette-based server (serve.py) has RequestSizeLimitMiddleware with a 10MB limit, but the WSGI server lacks any equivalent protection. This vulnerability is fixed in 4.5.128.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2xgv-5cv2-47vv Exploit, Vendor Advisory
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2xgv-5cv2-47vv Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · praisonNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*
References 2
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2xgv-5cv2-47vv Exploit, Vendor Advisory
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2xgv-5cv2-47vv Exploit, Vendor Advisory