CVE-2026-62176: PraisonAI: Code Injection via f-string Interpolation in Deploy API Server Generation

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-07 · updated 2026-10-07
Weakness: CWE-94

Description

PraisonAI is a multi-agent teams system. Prior to version 4.6.78, the `deploy/api.py` module generates Python server code by directly interpolating the `agents_file` parameter into an f-string that is then written to a file and executed via `subprocess.Popen()`. An attacker who controls the `agents_file` value (via CLI argument, configuration, or upstream API) can inject arbitrary Python code. Version 4.6.78 patches the issue.

Affected products

MervinPraison PraisonAI: before 4.6.78

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-g6j7-pffp-8whg
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-g6j7-pffp-8whg

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