CVE-2026-41497 Incomplete fix for CVE-2026-34935: Command Injection in MervinPraison/PraisonAI
Attackers can execute arbitrary commands via insufficient input validation in MCP command handling within the PraisonAI library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41497?
CVE-2026-41497 is a critical command injection vulnerability in MervinPraison PraisonAI, published on 8 May 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. Prior to version 4.6.9, the fix for PraisonAI's MCP command handling does not add a command allowlist or argument validation to parse_mcp_command(), allowing arbitrary executables like bash, python, or /bin/sh with inline code execution flags to pass through to subprocess execution. This issue has been patched in version 4.6.9.
Which versions are affected by CVE-2026-41497?
3 open source packages ship an affected version, including praisonai. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
praisonai PyPI | All versions | 4.5.149 |
praisonai PyPI | All versions | 4.5.149 |
praisonai PyPI | All versions | 4.5.149 |
Products include Praison Praisonai.
How do I fix CVE-2026-41497?
Upgrade praisonai to 4.5.149 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-41497 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41497 exists.
Other vulnerabilities in MervinPraison PraisonAI
- CVE-2026-39888 PraisonAIAgents has a sandbox escape via exception frame traversal in `execute_code` (subprocess mode)
- 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`
- CVE-2026-34935 PraisonAI: OS Command Injection in MCPHandler.parse_mcp_command()
Sources
Also known as GHSA-9qhq-v63v-fv3j, PYSEC-2026-473.