{"action":"Upgrade next to 15.5.21 or later.","affected":[{"fixed":"15.5.21","introduced":"14.1.1"},{"fixed":"16.2.11","introduced":"16.0.0"}],"component":"next","cve_ids":["CVE-2026-64649"],"ecosystem":"npm","epss":0.00459,"exploited":false,"fixed_versions":["15.5.21","16.2.11"],"ghsa_id":"GHSA-89xv-2m56-2m9x","id":"tcs_01M5KFCHGRA2AX87GAAP48B049","modified_at":"2026-09-10T03:50:51.547474623Z","published_at":"2026-07-22T23:09:48Z","references":["https://osv.dev/vulnerability/GHSA-89xv-2m56-2m9x","https://github.com/vercel/next.js/security/advisories/GHSA-89xv-2m56-2m9x","https://github.com/vercel/next.js/commit/b51206321854193208c0805ba42acc49287f942b","https://github.com/vercel/next.js/commit/e3e5666ccead3a15162793d697af5e48b7cc0498","https://github.com/vercel/next.js","https://github.com/vercel/next.js/releases/tag/v15.5.21","https://github.com/vercel/next.js/releases/tag/v16.2.11"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-89xv-2m56-2m9x","url":"https://osv.dev/vulnerability/GHSA-89xv-2m56-2m9x"}],"summary":"Next.js: Server-Side Request Forgery in Server Actions on custom servers"}