CVE-2026-19244
MediumCVSS 4.7Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
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.
Risk Assessment
An unauthorized user may gain access to MCP resources outside the intended scope, potentially leading to data integrity issues or unauthorized operations.
Recommendation
Upgrade the component to version 0.3.0, which includes the patch (4436).
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-2026-90809High
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.
- 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-2026-19243Medium
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 detected in HKUDS nanobot up to 0.2.1. The affected element is the function connect_mcp_servers of the file nanobot/agent/tools/mcp.py of the component MCP enabledTools Scope Handler. Performing a manipulation results in improper access controls. The attack is possible to be carried out remotely. The exploit is now public and may be used. Upgrading to version 0.3.0 is sufficient to fix this issue. The patch is named 4436. You should upgrade the affected component. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "Both reports describe the same root cause: MCP resource and prompt wrappers could be registered outside the intended enabledTools scope. The registration boundary was corrected".
Vulnerability data from NVD (NIST) · CISA KEV · EPSS