CVE-2026-94544: Next.js: Pending `use cache` fill can leak Draft Mode content into regular responses and persisted pages

Severity: medium (CVSS 4.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-02 · updated 2026-10-05
Weakness: CWE-524

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 An overlapping regular request can receive unauthenticated unpublished content from an editor's Draft Mode fill, while an overlapping Draft Mode request can receive published content from a regular fill.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.

Affected products

Next.js: from 16.3.0 before 16.3.8 — fixed in 16.3.8

How to fix

Upgrade to a fixed version: Next.js 16.3.8. Check the vendor advisory for mitigations.

References

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