{"action":"Upgrade @mikro-orm/core to 6.6.10 or later.","affected":[{"fixed":"6.6.10","introduced":"0"},{"fixed":"7.0.6","introduced":"7.0.0-dev.0"}],"component":"@mikro-orm/core","cve_ids":["CVE-2026-34221"],"ecosystem":"npm","epss":0.00383,"exploited":false,"fixed_versions":["6.6.10","7.0.6"],"ghsa_id":"GHSA-qpfv-44f3-qqx6","id":"tcs_01M5KG6PGRVVB7GNH72S5E6BDS","modified_at":"2026-03-31T19:04:39.043387Z","published_at":"2026-03-29T15:44:16Z","references":["https://osv.dev/vulnerability/GHSA-qpfv-44f3-qqx6","https://github.com/mikro-orm/mikro-orm/security/advisories/GHSA-qpfv-44f3-qqx6","https://nvd.nist.gov/vuln/detail/CVE-2026-34221","https://github.com/mikro-orm/mikro-orm"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-qpfv-44f3-qqx6","url":"https://osv.dev/vulnerability/GHSA-qpfv-44f3-qqx6"},{"source":"nvd","source_id":"CVE-2026-34221","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34221"}],"summary":"MikroORM has Prototype Pollution in Utils.merge"}