{"answers":{"affected":"3 open source packages ship an affected version, including metagpt.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10566 exists.","fix":"No fix has been published for CVE-2026-10566 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-10566 is a medium-severity unsafe deserialization vulnerability in FoundationAgents MetaGPT, published on 2 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-10566 and fix it if it is affected.\n\nWhat it is: CVE-2026-10566 is a medium-severity unsafe deserialization vulnerability in FoundationAgents MetaGPT, published on 2 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10566 exists.\n\nAffected packages and fixed versions:\n- metagpt (PyPI): affected all versions up to 0.8.2; no fix listed\n- metagpt (PyPI): affected all versions up to 0.8.2; no fix listed\n- metagpt (PyPI): affected all versions up to 0.8.2; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-10566/ (Markdown: https://insights.sbomify.com/CVE-2026-10566/index.md)","id":"CVE-2026-10566","markdown":"https://insights.sbomify.com/CVE-2026-10566/index.md","name":"CVE-2026-10566","record":{"aliases":["GHSA-3c3g-7hwg-9qmr","PYSEC-2026-2637"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Python AI agent library","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary code via unsafe deserialization in MetaGPT's message handling, requiring local access.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"},{"id":"CWE-20","name":"Improper Input Validation"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"FoundationAgents MetaGPT schema.py Message.check_instruct_content deserialization","id":"CVE-2026-10566","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"deserialization","year":"2026"},"n_packages":3,"n_references":6,"next":{"headline":"1Panel-dev CordysCRM ModuleFormController ModuleFormService.java save cross site scripting","id":"CVE-2026-10567"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.8.2"],"package":"metagpt","purl":null,"source":"GHSA-3c3g-7hwg-9qmr"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.8.2"],"package":"metagpt","purl":"pkg:pypi/metagpt","source":"GHSA-3c3g-7hwg-9qmr"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.8.2"],"package":"metagpt","purl":"pkg:pypi/metagpt","source":"PYSEC-2026-2637"}],"prev":{"headline":"Open5GS NGAP Handover gmm-sm.c gmm_state_security_mode race condition","id":"CVE-2026-10565"},"products":["MetaGPT"],"published":"2026-06-02","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-02","vendors":["FoundationAgents"]},"summary":"Attackers can execute arbitrary code via unsafe deserialization in MetaGPT's message handling, requiring local access.","url":"https://insights.sbomify.com/CVE-2026-10566/"}