CVE-2026-19245
LowCVSS 3.3Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
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.
Risk Assessment
A person with local access may gain unauthorized insight into sensitive data or environment configuration, potentially compromising system security.
Recommendation
Update nanobot to version 0.3.0 as soon as possible, which contains the fix. Restricting local access to the system will also reduce risk.
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-2026-19244Medium
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 flaw has been found in HKUDS nanobot up to 0.2.1. The impacted element is the function ExecTool._prepare_command of the file nanobot/agent/tools/shell.py of the component Login-shell Environment Handler. Executing a manipulation can lead to information disclosure. The attack requires local access. The exploit has been published and may be used. Upgrading to version 0.3.0 is sufficient to resolve this issue. This patch is called 4525. The affected component should be upgraded. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "The report concerns shell startup files reintroducing environment variables when command execution defaults to a login shell. The default was changed so exec does not use a login shell unless explicitly requested".
Vulnerability data from NVD (NIST) · CISA KEV · EPSS