CVE-2026-90809
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
A vulnerability was identified in HKUDS nanobot up to 0.2.1 in the functions ExecTool._guard_command and ExecTool._spawn of the file nanobot/agent/tools/shell.py (ExecTool component). The manipulation leads to argument injection and can be triggered remotely.
Risk Assessment
A remote attacker could inject arguments into executed commands, potentially leading to unauthorized actions on the system.
Recommendation
Apply the available patch (af582246f141311d574551b7571a517bcc3df750) or upgrade nanobot to a version containing the fix.
Other vulnerabilities in HKUDS nanobot
See all- CVE-2026-92576High
HKUDS nanobot before 0.3.0 contains a server-side request forgery vulnerability in the WebFetchTool component where the _validate_url() function fails to block internal IP ranges and private addresses. Attackers can send messages instructing the bot to fetch cloud metadata endpoints, localhost services, and RFC 1918 addresses to extract IAM credentials and internal service data.
- CVE-2026-90808Medium
A vulnerability was found in HKUDS nanobot up to 0.2.1, affecting the ExecTool._guard_command and ExecTool._spawn functions in nanobot/agent/tools/shell.py. The manipulation causes an incomplete blacklist, allowing remote attacks. A patch is available with name af582246f141311d574551b7571a517bcc3df750.
- CVE-2026-19246Medium
A vulnerability was found in HKUDS nanobot up to 0.2.1 in the _download_image_data_url function of nanobot/providers/image_generation.py, leading to server-side request forgery (SSRF). The attack can be initiated remotely and the exploit is public. Applying a patch is recommended.
- CVE-2026-19245Low
A vulnerability in HKUDS nanobot up to 0.2.1 affects the ExecTool._prepare_command function in nanobot/agent/tools/shell.py of the Login-shell Environment Handler component. Executing a manipulation can lead to information disclosure. The attack requires local access, and the exploit has been published.
- CVE-2026-19244Medium
A vulnerability was detected in HKUDS nanobot up to 0.2.1 in the connect_mcp_servers function of nanobot/agent/tools/mcp.py, leading to improper access controls. The attack can be performed remotely and the exploit is public. Upgrading to version 0.3.0 fixes the issue.
- CVE-2026-19243Medium
A vulnerability was detected in HKUDS nanobot up to 0.2.1 in the ExecTool._guard_command/ExecTool._spawn functions of nanobot/agent/tools/shell.py, leading to OS command injection. The attack can be executed remotely and the exploit is public. Upgrading to version 0.3.0 is recommended.
Original NVD description (English source)
A vulnerability was identified in HKUDS nanobot up to 0.2.1. The affected element is the function ExecTool._guard_command/ExecTool._spawn of the file nanobot/agent/tools/shell.py of the component ExecTool. Such manipulation leads to argument injection. It is possible to launch the attack remotely. The name of the patch is af582246f141311d574551b7571a517bcc3df750. It is best practice to apply a patch to resolve this issue.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS