{"action":"Upgrade next to 16.1.7 or later.","affected":[{"fixed":"16.1.7","introduced":"16.0.1"}],"component":"next","cve_ids":["CVE-2026-27978"],"ecosystem":"npm","epss":0.00208,"exploited":false,"fixed_versions":["16.1.7"],"ghsa_id":"GHSA-mq59-m269-xvcx","id":"tcs_01M5KG1EBDS2A2T170JZ3VP5MZ","modified_at":"2026-03-19T18:31:23.523529Z","published_at":"2026-03-17T15:30:14Z","references":["https://osv.dev/vulnerability/GHSA-mq59-m269-xvcx","https://github.com/vercel/next.js/security/advisories/GHSA-mq59-m269-xvcx","https://nvd.nist.gov/vuln/detail/CVE-2026-27978","https://github.com/vercel/next.js/commit/a27a11d78e748a8c7ccfd14b7759ad2b9bf097d8","https://github.com/vercel/next.js","https://github.com/vercel/next.js/releases/tag/v16.1.7"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-mq59-m269-xvcx","url":"https://osv.dev/vulnerability/GHSA-mq59-m269-xvcx"}],"summary":"Next.js: null origin can bypass Server Actions CSRF checks"}