CVE-2026-94543Next.js: Cache poisoning of SSG and ISR pages in self-hosted Next.js applications
Updated under an hour ago ()
Does this affect you?
It affects vercel next.js. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, self-hosted applications using the Pages Router with statically generated or Incremental Static Regeneration pages can key a response cache entry without sufficiently binding it to the source route. A request can replace one page's cache entry with content from a different route, causing the affected page to serve incorrect content to every visitor until revalidation. Applications deployed on Vercel are not affected. This issue is fixed in versions 15.5.27 and 16.3.8.
- CVSS
- 6.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-524
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
vercel next.js vercel:next.js (from the name) | from 15.0.0, < 15.5.27; from 16.0.0, < 16.3.8 | CNA record |
vercel next.js vercel:next.js | from 15.0.0 before 15.5.27; from 16.0.0 before 16.3.8 | NVD |
References
- https://github.com/vercel/next.js/security/advisories/GHSA-4jqv-mc3x-m676x-refsource-confirm, vendor-advisory
- https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8x-refsource-misc, patch
- https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52x-refsource-misc, patch
- https://github.com/vercel/next.js/releases/tag/v15.5.27x-refsource-misc, release-notes
- https://github.com/vercel/next.js/releases/tag/v16.3.8x-refsource-misc, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.