{"schema_version":"1.9.0","id":"GHSA-673q-mjm6-r5xr","published":"2026-10-22T16:42:31Z","modified":"2026-10-22T17:00:04.201859111Z","summary":"Next.js: Unauthenticated Remote Code Execution in `use cache` functions returning typed arrays","details":"## Impact\n\nA vulnerability in applications using App router with Cache Component can lead to remote code execution. The application needs to have a `use cache` function that returns multiple typed arrays.\n\n## Workaround\n\nThere is no known workaround for affected applications with such `use cache` functions. You should upgrade immediately even if your application does not have similar functions.","affected":[{"package":{"name":"next","ecosystem":"npm","purl":"pkg:npm/next"},"ranges":[{"type":"SEMVER","events":[{"introduced":"16.0.0"},{"fixed":"16.4.1"}]}],"database_specific":{"last_known_affected_version_range":"<= 16.4.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-673q-mjm6-r5xr/GHSA-673q-mjm6-r5xr.json"}}],"references":[{"type":"WEB","url":"https://github.com/vercel/next.js/security/advisories/GHSA-673q-mjm6-r5xr"},{"type":"WEB","url":"https://github.com/vercel/next.js/commit/a4cea6aec5da89d116b8960e113189cf51745d2f"},{"type":"PACKAGE","url":"https://github.com/vercel/next.js"},{"type":"WEB","url":"https://github.com/vercel/next.js/releases/tag/v16.4.1"}],"database_specific":{"cwe_ids":["CWE-502"],"github_reviewed":true,"github_reviewed_at":"2026-10-22T16:42:31Z","nvd_published_at":null,"severity":"CRITICAL"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N"}]}