CVE-2026-5971: Metagpt FoundationAgents MetaGPT Vulnerable To Eval Vulnerability

MODERATE
Advisory Identifier: GHSA-3ghp-8r47-4gj4
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CVSS 7.3
CWE-94
Published
Advisory Summary

CVE-2026-5971 is a MODERATE (CVSS 7.3) foundationagents metagpt vulnerable to eval vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Metagpt libraries in the PyPI ecosystem. The issue involves foundationagents metagpt vulnerable to eval injection. Remediation is available in the latest vendor maintenance releases.

CVE-2026-5971 at a Glance

CVE Identifier CVE-2026-5971
GHSA Identifier GHSA-3ghp-8r47-4gj4
Severity MODERATE
CVSS v3.1 Base Score 7.3
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Metagpt
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-5971

To remediate this vulnerability, upgrade all affected Metagpt dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

metagpt fixed: Latest secure release 
pip install metagpt>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show metagpt

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-5971, inspect your installed packages using pip:

pip show metagpt

Analyze the terminal output to locate any version of Metagpt in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show metagpt command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Metagpt, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A flaw has been found in FoundationAgents MetaGPT up to 0.8.1. This vulnerability affects the function ActionNode.xml_fill of the file metagpt/actions/action_node.py of the component XML Handler. Executing a manipulation can lead to improper neutralization of directives in dynamically evaluated code. The attack may be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through a pull request but has not reacted yet.

CVE-2026-5971 Affected Metagpt Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
metagpt
pypi/metagpt
PyPI
≤ 0.8.1

References

NVD — CVE-2026-5971 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5971
Metagpt Source Repository REPOSITORY
https://github.com/FoundationAgents/MetaGPT/issues/1928
Metagpt Source Repository REPOSITORY
https://github.com/FoundationAgents/MetaGPT/issues/1956
Metagpt Source Repository REPOSITORY
https://github.com/FoundationAgents/MetaGPT
vuldb.com/submit/791734 WEB
https://vuldb.com/submit/791734
vuldb.com/vuln/356525 WEB
https://vuldb.com/vuln/356525
vuldb.com/vuln/356525/cti WEB
https://vuldb.com/vuln/356525/cti

Frequently Asked Questions

What is CVE-2026-5971?
CVE-2026-5971 is a security vulnerability in Metagpt involving FoundationAgents MetaGPT vulnerable to eval injection under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Metagpt versions are affected?
Affected versions include releases prior to current release patches across affected packages: metagpt.
What version fixes CVE-2026-5971?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is metagpt affected?
Yes, metagpt is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-5971?
CVE-2026-5971 has a CVSS v3.1 base score of 7.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2026-5971?
CVE-2026-5971 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check PyPI dependencies for CVE-2026-5971?
Run the dependency tree command: 'pip show metagpt'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3ghp-8r47-4gj4",
  "modified" : "2026-04-10T20:03:43Z",
  "published" : "2026-04-09T18:31:28Z",
  "aliases" : [ "CVE-2026-5971" ],
  "summary" : "FoundationAgents MetaGPT vulnerable to eval injection",
  "details" : "A flaw has been found in FoundationAgents MetaGPT up to 0.8.1. This vulnerability affects the function ActionNode.xml_fill of the file metagpt/actions/action_node.py of the component XML Handler. Executing a manipulation can lead to improper neutralization of directives in dynamically evaluated code. The attack may be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through a pull request but has not reacted yet.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "metagpt"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.8.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-5971"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FoundationAgents/MetaGPT/issues/1928"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FoundationAgents/MetaGPT/issues/1956"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/FoundationAgents/MetaGPT"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/791734"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/356525"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/356525/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-94" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-10T20:03:43Z",
    "nvd_published_at" : "2026-04-09T18:17:04Z"
  }
}