🚨 [security] Update next 14.2.3 → 14.2.20 (patch)

[depfu]

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🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

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Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ next (14.2.3 → 14.2.20) · Repo

Security Advisories 🚨

🚨 Next.js authorization bypass vulnerability

Impact

If a Next.js application is performing authorization in middleware based on pathname, it was possible for this authorization to be bypassed for pages directly under the application's root directory. For example:

• [Not affected] https://example.com/
• [Affected] https://example.com/foo
• [Not affected] https://example.com/foo/bar

Patches

This issue was patched in Next.js 14.2.15 and later.

If your Next.js application is hosted on Vercel, this vulnerability has been automatically mitigated, regardless of Next.js version.

Workarounds

There are no official workarounds for this vulnerability.

Credits

We'd like to thank tyage (GMO CyberSecurity by IERAE) for responsible disclosure of this issue.

🚨 Denial of Service condition in Next.js image optimization

Impact

The image optimization feature of Next.js contained a vulnerability which allowed for a potential Denial of Service (DoS) condition which could lead to excessive CPU consumption.

Not affected:

• The next.config.js file is configured with images.unoptimized set to true or images.loader set to a non-default value.
• The Next.js application is hosted on Vercel.

Patches

This issue was fully patched in Next.js 14.2.7. We recommend that users upgrade to at least this version.

Workarounds

Ensure that the next.config.js file has either images.unoptimized, images.loader or images.loaderFile assigned.

Credits

Brandon Dahler (brandondahler), AWS
Dimitrios Vlastaras

🚨 Next.js Cache Poisoning

Impact

By sending a crafted HTTP request, it is possible to poison the cache of a non-dynamic server-side rendered route in the pages router (this does not affect the app router). When this crafted request is sent it could coerce Next.js to cache a route that is meant to not be cached and send a Cache-Control: s-maxage=1, stale-while-revalidate header which some upstream CDNs may cache as well.

To be potentially affected all of the following must apply:

• Next.js between 13.5.1 and 14.2.9
• Using pages router
• Using non-dynamic server-side rendered routes e.g. pages/dashboard.tsx not pages/blog/[slug].tsx

The below configurations are unaffected:

• Deployments using only app router
• Deployments on Vercel are not affected

Patches

This vulnerability was resolved in Next.js v13.5.7, v14.2.10, and later. We recommend upgrading regardless of whether you can reproduce the issue or not.

Workarounds

There are no official or recommended workarounds for this issue, we recommend that users patch to a safe version.

Credits

• Allam Rachid (zhero_)
• Henry Chen

Release Notes

Too many releases to show here. View the full release notes.

Sorry, we couldn't find anything useful about this release.

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[depfu]

Closed in favor of #39.