CVE-2026-31040Public exploitNetwork attack vector

Remote command execution via shell-escape directives

Published Apr 8, 2026 · Updated Apr 8, 2026

Command injection in stata-mcp before 1.13.0 allows remote attackers to execute host operating-system commands through crafted do-file content. The stata_do tool forwards supplied do-files to Stata without rejecting !cmd or shell directives, which Stata interprets as host commands. Exploitation requires the ability to invoke stata_do or an internal caller such as ssc_install; commands run with the MCP server process's privileges.

CVSS severity8.7
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in stata-mcp before 1.13.0 allows remote attackers to execute host operating-system commands through crafted do-file content. The stata_do tool forwards supplied do-files to Stata without rejecting !cmd or shell directives, which Stata interprets as host commands. Exploitation requires the ability to invoke stata_do or an internal caller such as ssc_install; commands run with the MCP server process's privileges.

The record

CVE
CVE-2026-31040
Published
Apr 8, 2026
Updated
Apr 8, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, CWE-20, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.7GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-20Improper Input Validation
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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