AIKIDO-2026-720263
next is vulnerable to Information Disclosure
63
Medium Risk
This Affects:
nextTL;DR
With Cache Components or experimental.useCache enabled, next shares an in flight 'use cache' fill across requests that use the same key. A normal request that overlaps a Draft Mode request receives the draft fill, with no authentication check. If that normal request prerenders the page, the unpublished content is stored and sent to later visitors until revalidation. The fix keeps Draft Mode fills separate from normal requests.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you preview drafts with Cache Components or experimental.useCache enabled.
Background info
next is vulnerable to Information Disclosure in versions 16.3.0 - 16.3.7.
How to fix this
Upgrade the next library to the patch version.
Links
GitHub Release
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