6.5

CVE-2026-19243

Exploit

HKUDS nanobot Shell Allowlist shell.py ExecTool._spawn os command injection

A security vulnerability has been detected 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 Shell Allowlist Handler. Such manipulation leads to os command injection. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.3.0 is recommended to address this issue. The name of the patch is 4562. It is advisable to upgrade the affected component. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "These five reports are variants of the same root cause: validation of shell commands containing multiple segments, wrappers, comments, or chained commands. The issue was fixed by validating every executable shell segment against the configured allowlist".
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerHKUDS
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Produkt nanobot
Version 0.2.0
Status affected
Version 0.2.1
Status affected
Version 0.3.0
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.61% 0.736
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@vuldb.com 2.1 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
cna@vuldb.com 6.3 2.8 3.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
cna@vuldb.com 6.5 8 6.4
AV:N/AC:L/Au:S/C:P/I:P/A:P
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

https://vuldb.com/vuln/386997
https://vuldb.com/vuln/386997/cti
https://vuldb.com/cve/CVE-2026-19243
https://vuldb.com/submit/865112
https://vuldb.com/submit/865114
https://vuldb.com/submit/865115
https://vuldb.com/submit/865119
https://vuldb.com/submit/865121
https://github.com/HKUDS/nanobot/issues/4521
https://gist.github.com/YLChen-007/8fcbf8e49e7be568e1a92e9e0414fdba
https://github.com/HKUDS/nanobot/pull/4562
https://github.com/HKUDS/nanobot/releases/tag/v0.3.0
https://github.com/HKUDS/nanobot/