# CVE-2026-27980: Next.js: Unbounded next/image disk cache growth can exhaust storage

> CVE-2026-27980: Next.js: Unbounded next/image disk cache growth can exhaust storage. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-27980
Last updated: 2026-06-17T10:28:00Z

- Published: 2026-03-18 00:23 UTC · Updated: 2026-06-17 10:28 UTC · Assigner: GitHub\_M
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.71%, 53th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-400

## Description

Next.js is a React framework for building full-stack web applications. Starting in version 10.0.0 and prior to version 16.1.7, the default Next.js image optimization disk cache (\`/\_next/image\`) did not have a configurable upper bound, allowing unbounded cache growth. An attacker could generate many unique image-optimization variants and exhaust disk space, causing denial of service. This is fixed in version 16.1.7 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. If upgrading is not immediately possible, periodically clean \`.next/cache/images\` and/or reduce variant cardinality (e.g., tighten values for \`images.localPatterns\`, \`images.remotePatterns\`, and \`images.qualities\`).

## Affected vendors and products

- vercel: next.js

## Tracked companies

- [Vercel](https://rewindex.com/company/vercel.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-27980)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-27980)
- [https://github.com/vercel/next.js/commit/39eb8e0ac498b48855a0430fbf4c22276a73b4bd](https://github.com/vercel/next.js/commit/39eb8e0ac498b48855a0430fbf4c22276a73b4bd)
- [https://github.com/vercel/next.js/releases/tag/v16.1.7](https://github.com/vercel/next.js/releases/tag/v16.1.7)
- [https://github.com/vercel/next.js/security/advisories/GHSA-3x4c-7xq6-9pq8](https://github.com/vercel/next.js/security/advisories/GHSA-3x4c-7xq6-9pq8)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-27980 · Markdown: https://rewindex.com/cve/CVE-2026-27980.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-27980 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:45.368Z