{"cve":"CVE-2026-10566","nvd":{"published":"2026-06-02T03:16:16.210","modified":"2026-07-22T19:10:00.120","status":"Deferred","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.","cvss_v4":{"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","score":1.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":5.3},"cwes":["CWE-20","CWE-502"],"references":["https://github.com/FoundationAgents/MetaGPT/","https://github.com/FoundationAgents/MetaGPT/issues/2038","https://vuldb.com/cve/CVE-2026-10566","https://vuldb.com/submit/828301","https://vuldb.com/vuln/367673"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-10566","score":0.00122,"percentile":0.01938,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-3c3g-7hwg-9qmr","url":"https://osv.dev/vulnerability/GHSA-3c3g-7hwg-9qmr","summary":" FoundationAgents MetaGPT: Deserialization through flawed argument mapping via Message.check_instruct_content()","modified":"2026-07-13T16:43:50.300060289Z","packages":[{"ecosystem":"PyPI","name":"metagpt","purl":"pkg:pypi/metagpt","ranges":["<=0.8.2"],"fixed":[]}]},{"id":"PYSEC-2026-2637","url":"https://osv.dev/vulnerability/PYSEC-2026-2637","summary":" FoundationAgents MetaGPT: Deserialization through flawed argument mapping via Message.check_instruct_content()","modified":"2026-07-13T16:32:14.634694994Z","packages":[{"ecosystem":"PyPI","name":"metagpt","purl":"pkg:pypi/metagpt","ranges":["<=0.8.2"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}