CVE-2026-47393 PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default
PraisonAI's default API server configuration lacks authentication, allowing unauthenticated attackers to access endpoints and potentially execute code via LLM orchestration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47393?
CVE-2026-47393 is a critical missing authorization vulnerability in MervinPraison PraisonAI, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PraisonAI is a multi-agent teams system. CVE-2026-44338 (GHSA-6rmh-7xcm-cpxj) documents that PraisonAI ships a code-generator (`praisonai.deploy.api.generate_api_server_code`) 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 `auth_enabled` defaulting to `False`. The fix shape is opt-in via `APIConfig(auth_enabled=True, auth_token=...)`. Version 4.6.40 fixes the issue.
Which versions are affected by CVE-2026-47393?
3 open source packages ship an affected version, including praisonai and PraisonAI.
| Package | Affected | Fixed in |
|---|---|---|
praisonai PyPI | All versions | 4.6.40 |
praisonai PyPI | All versions | 4.6.40 |
PraisonAI PyPI | All versions | 4.6.40 |
How do I fix CVE-2026-47393?
Upgrade praisonai to 4.6.40 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-47393 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47393 exists.
Sources
Also known as GHSA-8444-4fhq-fxpq, PYSEC-2026-465.