CVE-2026-19243

MEDIUM CVSS 4.0: 2.1 EPSS 1.61%
Updated Aug 12, 2026
Hkuds
Parameter Value
CVSS 2.1 (MEDIUM)
Type CWE-77 (Command Injection), CWE-78 (OS Command Injection)
Vendor Hkuds
Public PoC No

A security vulnerability has been detected in HKUDS nanobot up to 0.2.1. Impacted is the function ExecTool._guard_command/ExecTool._spawn of the file nanobot/agent/tools/shell.py of the component Shell Allowlist Handler. Such manipulation leads to os command injection.

The attack can be executed remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.3.0 is recommended to address this issue.

The name of the patch is 4562. It is advisable to upgrade the affected component. Multiple issues were reported to the project.

They reacted with a high level of professionalism and kindness: "These five reports are variants of the same root cause: validation of shell commands containing multiple segments, wrappers, comments, or chained commands. The issue was fixed by validating every executable shell segment against the configured allowlist".

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0

Vulnerable Products

hkuds:nanobot