CVE-2026-94544 Next.js: Pending `use cache` fill can leak Draft Mode content into regular responses and persisted pages
Attackers can access unpublished draft content or serve stale published content due to shared cache keys in Next.js when cache components are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-94544?
CVE-2026-94544 is a medium-severity vulnerability in Vercel Next.js, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Next.js is a React framework for building full-stack web applications. From 16.3.0 until 16.3.8, pending use cache fills for the same key are shared without separating Draft Mode requests from regular requests. An overlapping regular request can receive unauthenticated unpublished content from an editor's Draft Mode fill, while an overlapping Draft Mode request can receive published content from a regular fill. When the regular request prerenders a page, the draft-dependent content can persist in the generated page and be served to later visitors until revalidation. Sites are affected when Cache Components or experimental.useCache is enabled and cached functions return draft-dependent content. This issue is fixed in version 16.3.8.
Weakness: CWE-524
Which versions are affected by CVE-2026-94544?
2 open source packages ship an affected version, including next. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
next npm | From 16.3.0 | 16.3.8 |
next npm | From 16.3.0 | 16.3.8 |
Products include Vercel Next.js.
How do I fix CVE-2026-94544?
Upgrade next to 16.3.8 or later.
Is CVE-2026-94544 being exploited?
There is no known exploitation of CVE-2026-94544 in the wild and no public exploit code.
Other vulnerabilities in Vercel Next.js
- CVE-2025-29927 Authorization Bypass in Next.js Middleware
- CVE-2026-44578 Next.js: Server-side request forgery in applications using WebSocket upgrades
- CVE-2026-94483 Next.js: Server-Side Request Forgery in Image Optimization
- CVE-2026-64642 Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale
- CVE-2026-64645 Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname
Sources
Also known as CLEANSTART-2026-LU91750, CLEANSTART-2026-VM40909, CLEANSTART-2026-WK31572, CLEANSTART-2026-ZM21306, GHSA-3w37-wq28-93x7, MINI-55j4-j67m-cch7 and 2 more.