CVE-2026-90809

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.

CVSS v3 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/HKUDS/nanobot/
https://github.com/HKUDS/nanobot/commit/af582246f141311d574551b7571a517bcc3df750
https://github.com/HKUDS/nanobot/issues/5306
https://github.com/HKUDS/nanobot/pull/5345
https://vuldb.com/cve/CVE-2026-90809
https://vuldb.com/submit/922850
https://vuldb.com/vuln/403311
https://vuldb.com/vuln/403311/cti

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 19:18

Updated : 2026-09-15 14:17

NVD link : CVE-2026-90809

Mitre link : CVE-2026-90809

CVE.ORG link : CVE-2026-90809

JSON object : View

Products Affected

No product.

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

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