Tóm tắt nhanh
- CVE-2026-27980 là lỗ hổng mức CAO (CVSS 7.5) ảnh hưởng next.js (vercel), next.
- Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.71%, cao hơn 53.5% các lỗ hổng khác.
- Cách xử lý: cập nhật lên 16.1.7, 15.5.14 hoặc mới hơn.
| Gói / sản phẩm | Phiên bản bị ảnh hưởng | Phiên bản đã vá |
|---|
| next.js | ≥ 10.0.0, < 16.1.7
| 16.1.7
|
| next npm | ≥ 10.0.0, < 15.5.14≥ 16.0.0-beta.0, < 16.1.7
| 15.5.1416.1.7
|
Mô tả
Summary
The default Next.js image optimization disk cache (/_next/image) did not have a configurable upper bound, allowing unbounded cache growth.
Impact
An 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.
Patches
Fixed 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.
Workarounds
If upgrade is not immediately possible:
- Periodically clean
.next/cache/images.
- Reduce variant cardinality (e.g., tighten values for
images.localPatterns, images.remotePatterns, and images.qualities)
Mô tả của NVD
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`).
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