CVE-2026-10566

lowCVSS 5.3covered by 1 sourcefirst seen 2026-06-02

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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Exploitation outlook

Low exploitation risk0.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.

Advisory coverage (1)

lowGHSA-3c3g-7hwg-9qmr: FoundationAgents MetaGPT: Deserialization through flawed argument mapping via Message.che…ghsa · 2026-06-02

External references

NVD record for CVE-2026-10566

CVE.org record

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