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CVE-2026-40288 β€” AI Deep Analysis Summary

CVSS 9.8 Β· Critical

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A Code Injection flaw in PraisonAI's workflow engine. πŸ“‰ **Consequences**: Attackers can execute arbitrary commands and code, leading to total system compromise.…

Q2Root Cause? (CWE/Flaw)

πŸ›‘οΈ **Root Cause**: **CWE-78** (OS Command Injection). The vulnerability lies in the **Workflow Engine** failing to sanitize or properly validate inputs from untrusted YAML configurations before execution.

Q3Who is affected? (Versions/Components)

πŸ‘₯ **Affected**: **PraisonAI** versions **< 4.5.139** and **praisonaiagents** versions **< 1.5.140**. Developed by **MervinPraison**. If you are using these low-code multi-agent frameworks, you are at risk.

Q4What can hackers do? (Privileges/Data)

πŸ’€ **Attacker Capabilities**: Full **Remote Code Execution (RCE)**. Hackers gain the ability to run any OS command on the host server.…

Q5Is exploitation threshold high? (Auth/Config)

⚑ **Exploitation Threshold**: **LOW**. The CVSS vector shows **AV:N** (Network), **AC:L** (Low Complexity), **PR:N** (No Privileges Required), **UI:N** (No User Interaction).…

Q6Is there a public Exp? (PoC/Wild Exploitation)

πŸ” **Public Exploit**: Currently, the **PoCs list is empty** in the provided data. However, given the severity (CVSS 9.8) and nature (RCE), public exploits are likely emerging soon. Do not wait for a PoC to act.

Q7How to self-check? (Features/Scanning)

πŸ”Ž **Self-Check**: Scan your environment for **PraisonAI** installations. Check version numbers against **4.5.139** and **1.5.140**.…

Q8Is it fixed officially? (Patch/Mitigation)

βœ… **Official Fix**: **YES**. The vendor has issued a security advisory (GHSA-vc46-vw85-3wvm). The fix is available in **PraisonAI β‰₯ 4.5.139** and **praisonaiagents β‰₯ 1.5.140**. Update immediately.

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: If you cannot update immediately, **disable the workflow engine** or restrict YAML input sources to strictly trusted/internal sources only.…

Q10Is it urgent? (Priority Suggestion)

πŸ”₯ **Urgency**: **CRITICAL**. With a CVSS score of **9.8** (Critical) and no authentication required, this is a high-priority vulnerability. Patch immediately to prevent remote takeover of your AI infrastructure.