PT-2026-31784 · Starlette+1 · Starlette+1

Published 2026-04-09 · Updated 2026-04-10 · CVE-2026-40115

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions PraisonAI versions prior to 4.5.128

Description PraisonAI is a multi-agent teams system. The WSGI-based recipe registry server (server.py) reads the entire HTTP request body into memory based on the client-supplied Content-Length header without any limit. With authentication disabled by default, 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 equivalent protection.

Recommendations Update to version 4.5.128 or later.

Exploit

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-40115

GHSA-2XGV-5CV2-47VV

Affected Products

Praisonai

Starlette

References · 8

• 🔥 https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2xgv-5cv2-47vv · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-40115 · Security Note
• https://osv.dev/vulnerability/GHSA-2xgv-5cv2-47vv · Vendor Advisory
• https://github.com/MervinPraison/PraisonAI · Note
• https://github.com/MervinPraison/PraisonAI/releases/tag/v4.5.128 · Note
• https://twitter.com/VulmonFeeds/status/2042423535407095961 · Twitter Post
• https://twitter.com/CVEnew/status/2042561840048410716 · Twitter Post
• https://twitter.com/infoflowcloud/status/2042562305024475252 · Twitter Post