Local command execution via shell-string fallback
Published Aug 6, 2026 · Updated Aug 6, 2026
Command injection in NocteDefensor LudusMCP 1.0.24 and earlier allows local users to execute shell commands through ludus_cli_execute. The cliWrapper.ts fallback joins caller-controlled command and args values into a shell string and passes it to execSync after the safer spawn path fails. Exploitation requires low-privileged local access and an error or timeout in the primary spawn path; injected commands run with the MCP server process's privileges.
Summary
What happened
Command injection in NocteDefensor LudusMCP 1.0.24 and earlier allows local users to execute shell commands through ludus_cli_execute. The cliWrapper.ts fallback joins caller-controlled command and args values into a shell string and passes it to execSync after the safer spawn path fails. Exploitation requires low-privileged local access and an error or timeout in the primary spawn path; injected commands run with the MCP server process's privileges.
The record
- CVE
- CVE-2026-19047
- Published
- Aug 6, 2026
- Updated
- Aug 6, 2026
- Vendor
- NocteDefensor
- Product
- LudusMCP
- Classifications
- CWE-74, CWE-77, T1059
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 6, 2026CVE publishedPublication date reported by the CVE source.
- Aug 6, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0
- Affected versionversion=1.0.1
- Affected versionversion=1.0.10
- Affected versionversion=1.0.11
- Affected versionversion=1.0.12
- Affected versionversion=1.0.13
- Affected versionversion=1.0.14
- Affected versionversion=1.0.15
- Affected versionversion=1.0.16
- Affected versionversion=1.0.17
- Affected versionversion=1.0.18
- Affected versionversion=1.0.19
- Affected versionversion=1.0.2
- Affected versionversion=1.0.20
- Affected versionversion=1.0.21
- Affected versionversion=1.0.22
- Affected versionversion=1.0.23
- Affected versionversion=1.0.24
- Affected versionversion=1.0.3
- Affected versionversion=1.0.4
- Affected versionversion=1.0.5
- Affected versionversion=1.0.6
- Affected versionversion=1.0.7
- Affected versionversion=1.0.8
- Affected versionversion=1.0.9
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Ludus CLI fallback command-injection MCP requestproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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