---
title: "CVE-2026-47393: PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default"
url: https://erroneo.us/security/cve/CVE-2026-47393/
description: "CVE-2026-47393 (PraisonAI (PyPI)): PraisonAI is a multi-agent teams system. CVE-2026-44338 (GHSA-6rmh-7xcm-cpxj) documents that PraisonAI ships a…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-07-21
date_modified: 2026-07-22
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-47393"
kev: false
cvss: 9.8
epss: 0.00779
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-47393: PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.8% , percentile 55: FIRST’s model estimates a 0.8% chance of exploitation activity in the next 30 days, higher than 55% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes PraisonAI (PyPI) <= 4.6.39, fixed in 4.6.40 . Check your lockfile, including transitive dependencies.

## What it is

PraisonAI is a multi-agent teams system. CVE-2026-44338 (GHSA-6rmh-7xcm-cpxj) documents that PraisonAI ships a code-generator (praisonai.deploy.api.generateapiservercode) that emits a Flask API server with authentication disabled by default. Users who follow the documented quickstart (praisonai deploy --type api) get a server that binds to 0.0.0.0 per the recommended sample YAML, exposes /chat and /agents endpoints, runs praisonai.run() on user-supplied JSON input — LLM orchestration with the API key materials present in the process environment, and does not require any authentication. Versions prior to 4.6.40 still ship the generator with authenabled defaulting to False. The fix shape is opt-in via APIConfig(authenabled=True, authtoken=...). Version 4.6.40 fixes the issue.

## Affected packages

- PyPI `PraisonAI` <= 4.6.39 → fixed: 4.6.40

## Affected products (CVE record)

- MervinPraison PraisonAI: < 4.6.40

## Severity

- GitHub_M CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.78% probability of exploitation activity in the next 30 days; percentile 55.

## Sources

- [GitHub Advisory GHSA-8444-4fhq-fxpq](https://github.com/advisories/GHSA-8444-4fhq-fxpq)
- [CVE.org record CVE-2026-47393](https://www.cve.org/CVERecord?id=CVE-2026-47393)
- [NVD entry CVE-2026-47393](https://nvd.nist.gov/vuln/detail/CVE-2026-47393)
- [github.com](https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-8444-4fhq-fxpq)
- [github.com](https://github.com/MervinPraison/PraisonAI/pull/1685)
- [github.com](https://github.com/MervinPraison/PraisonAI/commit/ef79b7a0561796ad9807f0f09538c25cc78d3619)
- [github.com](https://github.com/advisories/GHSA-6rmh-7xcm-cpxj)

---
Source page: https://erroneo.us/security/cve/CVE-2026-47393/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt