A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2. This affects the function Message.check_instruct_content of the file metagpt/schema.py. Executing a manipulation of the argument mapping can lead to deserialization. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

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Fixes

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History

Tue, 02 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 02 Jun 2026 04:15:00 +0000

Type Values Removed Values Added
First Time appeared Foundation Agents
Foundation Agents metagpt
Vendors & Products Foundation Agents
Foundation Agents metagpt

Tue, 02 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
Description A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2. This affects the function Message.check_instruct_content of the file metagpt/schema.py. Executing a manipulation of the argument mapping can lead to deserialization. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Title FoundationAgents MetaGPT schema.py Message.check_instruct_content deserialization
First Time appeared Foundationagents
Foundationagents metagpt
Weaknesses CWE-20
CWE-502
CPEs cpe:2.3:a:foundationagents:metagpt:*:*:*:*:*:*:*:*
Vendors & Products Foundationagents
Foundationagents metagpt
References
Metrics cvssV2_0

{'score': 4.3, 'vector': 'AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-06-02T12:24:18.920Z

Reserved: 2026-06-01T16:34:26.724Z

Link: CVE-2026-10566

cve-icon Vulnrichment

Updated: 2026-06-02T12:24:14.923Z

cve-icon NVD

Status : Deferred

Published: 2026-06-02T03:16:16.210

Modified: 2026-06-02T13:03:31.153

Link: CVE-2026-10566

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T04:00:11Z

Weaknesses