CVE-2026-44334 PraisonAI: Unauthenticated RCE via `tool_override.py`
Unauthenticated attackers can execute arbitrary code by uploading a malicious tools.py file via the recipe runner endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44334?
CVE-2026-44334 is a high-severity code injection vulnerability in MervinPraison PraisonAI, published on 8 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
PraisonAI is a multi-agent teams system. From version 4.5.139 to before version 4.6.32, CVE-2026-40287's fix gated tools.py auto-import behind PRAISONAI_ALLOW_LOCAL_TOOLS=true in two files (tool_resolver.py, api/call.py). A third import sink in praisonai/templates/tool_override.py was missed and remains unguarded. It is reached by the recipe runner on every recipe execution and is remotely triggerable through POST /v1/recipes/run with a recipe value pointing at any local absolute path or any GitHub repo (because SecurityConfig.allow_any_github defaults to True). The attacker drops a tools.py next to TEMPLATE.yaml; the server exec_module()s it. No auth required by default, no environment opt-in required. This issue has been patched in version 4.6.32.
Weakness: CWE-94
Which versions are affected by CVE-2026-44334?
3 open source packages ship an affected version, including praisonai. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
praisonai PyPI | From 4.5.139 | 4.6.32 |
praisonai PyPI | From 4.5.139 | 4.6.32 |
praisonai PyPI | From 4.5.139 | 4.6.32 |
Products include Praison Praisonai.
How do I fix CVE-2026-44334?
Upgrade praisonai to 4.6.32 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-44334 being exploited?
There is no known exploitation of CVE-2026-44334 in the wild and no public exploit code.
Other vulnerabilities in MervinPraison PraisonAI
- CVE-2026-39888 PraisonAIAgents has a sandbox escape via exception frame traversal in `execute_code` (subprocess mode)
- CVE-2026-41497 Incomplete fix for CVE-2026-34935: Command Injection in MervinPraison/PraisonAI
- CVE-2026-40288 PraisonAI: Critical RCE via `type: job` workflow YAML
- CVE-2026-39890 PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading
- CVE-2026-34934 PraisonAI: Second-Order SQL Injection in `get_all_user_threads`
Sources
Also known as GHSA-xcmw-grxf-wjhj, PYSEC-2026-2926.