CVE-2026-90809: Argument Injection in HKUDS nanobot
CVE-2026-90809 is a medium-severity vulnerability in HKUDS nanobot versions 0.2.0 and 0.2.1. It involves argument injection in the ExecTool component's ExecTool._guard_command and ExecTool._spawn functions within the nanobot/agent/tools/shell.py file. This vulnerability can be exploited remotely. A patch identified by commit af582246f141311d574551b7571a517bcc3df750 is available to fix the issue.
AI Analysis
Technical Summary
The vulnerability CVE-2026-90809 affects HKUDS nanobot up to version 0.2.1. It is caused by improper handling of arguments in the ExecTool._guard_command and ExecTool._spawn functions of the ExecTool component, leading to argument injection. This flaw allows an attacker to remotely inject arguments, potentially impacting the execution flow of the tool. The vulnerability has a CVSS 4.0 base score of 6.9, indicating a medium severity level. A patch has been released under commit af582246f141311d574551b7571a517bcc3df750 to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows remote attackers to perform argument injection in the affected functions, which could lead to unintended command execution or manipulation within the ExecTool component. The CVSS score of 6.9 reflects a medium impact with network attack vector and no privileges or user interaction required.
Mitigation Recommendations
Apply the official patch identified by commit af582246f141311d574551b7571a517bcc3df750 to versions 0.2.0 and 0.2.1 of HKUDS nanobot. Updating to the patched version will resolve the argument injection vulnerability. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-90809: Argument Injection in HKUDS nanobot
Description
CVE-2026-90809 is a medium-severity vulnerability in HKUDS nanobot versions 0.2.0 and 0.2.1. It involves argument injection in the ExecTool component's ExecTool._guard_command and ExecTool._spawn functions within the nanobot/agent/tools/shell.py file. This vulnerability can be exploited remotely. A patch identified by commit af582246f141311d574551b7571a517bcc3df750 is available to fix the issue.
CVSS v4.0
Score 6.9medium
Affected software
HKUDS
nanobot
cpe:2.3:a:nanobot:nanobot:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-90809 affects HKUDS nanobot up to version 0.2.1. It is caused by improper handling of arguments in the ExecTool._guard_command and ExecTool._spawn functions of the ExecTool component, leading to argument injection. This flaw allows an attacker to remotely inject arguments, potentially impacting the execution flow of the tool. The vulnerability has a CVSS 4.0 base score of 6.9, indicating a medium severity level. A patch has been released under commit af582246f141311d574551b7571a517bcc3df750 to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows remote attackers to perform argument injection in the affected functions, which could lead to unintended command execution or manipulation within the ExecTool component. The CVSS score of 6.9 reflects a medium impact with network attack vector and no privileges or user interaction required.
Mitigation Recommendations
Apply the official patch identified by commit af582246f141311d574551b7571a517bcc3df750 to versions 0.2.0 and 0.2.1 of HKUDS nanobot. Updating to the patched version will resolve the argument injection vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-13T16:11:20.697Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa83dab55bf5e2cf57193e2
Added to database: 09/14/2026, 18:32:11 UTC
Last enriched: 09/14/2026, 18:46:56 UTC
Last updated: 09/14/2026, 18:46:56 UTC
Views: 4
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