Command Injection Vulnerability in HKUDS Nanobot Product
CVE-2026-90809

6.9MEDIUM

Key Information:

Vendor

Hkuds

Status
Nanobot
Vendor
CVE Published:
14 September 2026

What is CVE-2026-90809?

A command injection vulnerability exists in the HKUDS Nanobot's ExecTool component, specifically affecting the functions ExecTool._guard_command and ExecTool._spawn found in shell.py. This vulnerability allows an attacker to manipulate the function's parameters, potentially leading to unauthorized command execution. The attack can be performed remotely, making it critical for users to apply the recommended patch (commit af582246f141311d574551b7571a517bcc3df750) to safeguard their systems.

Affected Version(s)

nanobot 0.2.0

nanobot 0.2.1

References

https://vuldb.com/vuln/403311
vdb-entrytechnical-description
https://vuldb.com/vuln/403311/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90809
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-a (VulDB User)
.