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CVE-2026-90808

HKUDS nanobot ExecTool shell.py ExecTool._spawn incomplete blacklist

CVSS 4.0 5.3 MEDIUMCVSS 3.1 6.3 MEDIUMCVSS 3.0 6.3 MEDIUMCVSS 2.0 6.5 Check source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90808

Published

A vulnerability was determined in HKUDS nanobot up to 0.2.1. Impacted is the function ExecTool._guard_command/ExecTool._spawn of the file nanobot/agent/tools/shell.py of the component ExecTool. This manipulation causes incomplete blacklist. It is possible to initiate the attack remotely. Patch name: af582246f141311d574551b7571a517bcc3df750. Applying a patch is the recommended action to fix this issue.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90808

Published

nanobot

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "HKUDS",
                    "product": "nanobot",
                    "versions": [
                        {
                            "version": "0.2.0",
                            "status": "affected"
                        },
                        {
                            "version": "0.2.1",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:nanobot:nanobot:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "ExecTool"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON