CVE-2026-10566
published 2026-06-02CVE-2026-10566: 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…
PriorityP428medium5.3CVSS 3.1
AVLACLPRLUINSUCLILAL
EPSS
0.12%
2.3th percentile
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.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| foundationagents | metagpt | — | — |
| foundationagents | metagpt | — | — |
| foundationagents | metagpt | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
nvdv4.01.9LOWCVSS: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/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
nvdv2.04.3MEDIUMAV:L/AC:L/Au:S/C:P/I:P/A:P
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GHSA
A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2.
ghsa_unreviewed·2026-06-02
CVE-2026-10566 [LOW] CWE-20 A weakness has been identified in FoundationAgents MetaGPT up to 0.8.2.
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.
VulDB
FoundationAgents MetaGPT up to 0.8.2 metagpt/schema.py Message.check_instruct_content mapping deserialization (Issue 2038)
vuldb·2026-06-01
CVE-2026-10566 [CRITICAL] FoundationAgents MetaGPT up to 0.8.2 metagpt/schema.py Message.check_instruct_content mapping deserialization (Issue 2038)
A vulnerability was found in FoundationAgents MetaGPT up to 0.8.2 and classified as critical. 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.
This vulnerability is tracked as CVE-2026-10566. The attack is restricted to local execution. Moreover, an exploit is present.
The project was informed of the problem early through an issue report but has not responded yet.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-02
Published