CVE-2026-19243Public exploitNetwork attack vector

Authenticated command execution via shell-chain allowlist bypass

Published Aug 7, 2026 · Updated Aug 7, 2026

OS command injection in Data Intelligence Lab @ HKU nanobot 0.2.0 through 0.2.1 allows remote authenticated users to run shell commands via exec. ExecTool._guard_command matches an allowlisted prefix in the raw command, while ExecTool._spawn passes the entire string to the shell. Exploitation requires an enabled exec tool and a loose allowPatterns regex; appended shell segments run with the nanobot process's OS privileges.

CVSS severity6.3
Medium
EPSS probability1.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Data Intelligence Lab @ HKU nanobot 0.2.0 through 0.2.1 allows remote authenticated users to run shell commands via exec. ExecTool._guard_command matches an allowlisted prefix in the raw command, while ExecTool._spawn passes the entire string to the shell. Exploitation requires an enabled exec tool and a loose allowPatterns regex; appended shell segments run with the nanobot process's OS privileges.

The record

CVE
CVE-2026-19243
Published
Aug 7, 2026
Updated
Aug 7, 2026
Vendor
Data Intelligence Lab @ HKU
Product
nanobot
Classifications
CWE-77, CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.2.0
  2. Affected versionversion=0.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Data Intelligence Lab @ HKU · nanobotversion=0.2.0; version=0.2.1

Published CVSS scores

2.1VulDBCVSS: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
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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