{"id":"GHSA-3x4c-7xq6-9pq8","summary":"Next.js: Unbounded next/image disk cache growth can exhaust storage","details":"## Summary\nThe default Next.js image optimization disk cache (`/_next/image`) did not have a configurable upper bound, allowing unbounded cache growth.\n\n## Impact\nAn attacker could generate many unique image-optimization variants and exhaust disk space, causing denial of service. Note that this does not impact platforms that have their own image optimization capabilities, such as Vercel.\n\n## Patches\nFixed by adding an LRU-backed disk cache with `images.maximumDiskCacheSize`, including eviction of least-recently-used entries when the limit is exceeded. Setting `maximumDiskCacheSize: 0` disables disk caching. \n\n## Workarounds\nIf upgrade is not immediately possible:\n- Periodically clean `.next/cache/images`.\n- Reduce variant cardinality (e.g., tighten values for `images.localPatterns`, `images.remotePatterns`, and `images.qualities`)","aliases":["CVE-2026-27980"],"modified":"2026-07-17T21:07:10.079399936Z","published":"2026-03-17T16:17:06Z","database_specific":{"cwe_ids":["CWE-400"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-03-17T16:17:06Z","nvd_published_at":"2026-03-18T01:16:04Z"},"references":[{"type":"WEB","url":"https://github.com/vercel/next.js/security/advisories/GHSA-3x4c-7xq6-9pq8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27980"},{"type":"WEB","url":"https://github.com/vercel/next.js/commit/39eb8e0ac498b48855a0430fbf4c22276a73b4bd"},{"type":"PACKAGE","url":"https://github.com/vercel/next.js"},{"type":"WEB","url":"https://github.com/vercel/next.js/releases/tag/v16.1.7"}],"affected":[{"package":{"name":"next","ecosystem":"npm","purl":"pkg:npm/next"},"ranges":[{"type":"SEMVER","events":[{"introduced":"16.0.0-beta.0"},{"fixed":"16.1.7"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3x4c-7xq6-9pq8/GHSA-3x4c-7xq6-9pq8.json"}},{"package":{"name":"next","ecosystem":"npm","purl":"pkg:npm/next"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.0.0"},{"fixed":"15.5.14"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3x4c-7xq6-9pq8/GHSA-3x4c-7xq6-9pq8.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}