CVE-2026-5971
FoundationAgents MetaGPT XML action_node.py ActionNode.xml_fill eval injection
Description
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.
INFO
Published Date :
April 9, 2026, 6:17 p.m.
Last Modified :
April 29, 2026, 7:45 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update FoundationAgents MetaGPT to a patched version.
- Review and apply vendor security patches.
- Disable or restrict XML processing if possible.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-5971.
| URL | Resource |
|---|---|
| https://github.com/FoundationAgents/MetaGPT/ | Product |
| https://github.com/FoundationAgents/MetaGPT/issues/1928 | Issue Tracking Exploit |
| https://github.com/FoundationAgents/MetaGPT/issues/1956 | Issue Tracking |
| https://vuldb.com/submit/791734 | Exploit Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/356525 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/356525/cti | Permissions Required VDB Entry |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-5971 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-5971
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-5971 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-5971 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 29, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:deepwisdom:metagpt:*:*:*:*:*:*:*:* versions up to (including) 0.8.1 Added Reference Type VulDB: https://github.com/FoundationAgents/MetaGPT/ Types: Product Added Reference Type VulDB: https://github.com/FoundationAgents/MetaGPT/issues/1928 Types: Exploit, Issue Tracking Added Reference Type VulDB: https://github.com/FoundationAgents/MetaGPT/issues/1956 Types: Issue Tracking Added Reference Type VulDB: https://vuldb.com/submit/791734 Types: Exploit, Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/356525 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/356525/cti Types: Permissions Required, VDB Entry -
Data Remediation by [email protected]
Apr. 29, 2026
Action Type Old Value New Value Changed CVSS V4.0 Score 6.9 5.5 -
New CVE Received by [email protected]
Apr. 09, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CWE CWE-94 Added CWE CWE-95 Added Reference https://github.com/FoundationAgents/MetaGPT/ Added Reference https://github.com/FoundationAgents/MetaGPT/issues/1928 Added Reference https://github.com/FoundationAgents/MetaGPT/issues/1956 Added Reference https://vuldb.com/submit/791734 Added Reference https://vuldb.com/vuln/356525 Added Reference https://vuldb.com/vuln/356525/cti