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fix(deps): update dependency next to v16.3.8 [security] - #10

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renovate/npm-next-vulnerability
Oct 30, 2026
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fix(deps): update dependency next to v16.3.8 [security]#10
PChild merged 2 commits into
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renovate/npm-next-vulnerability

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This PR contains the following updates:

Package Change Age Confidence
next (source) 16.3.6 → 16.3.8 age confidence

Next.js has Server-Side Request Forgery in Image Optimization

CVE-2026-94483 / GHSA-cjq9-62q9-8jv4

More information

Details

Impact

An attacker-controlled, allow-listed remote URL can lead to server-side request forgery (e.g. to private IPs) during Image Optimization.

Workaround

Audit allow-listed remote URLs in images.remotePatterns (see https://nextjs.org/docs/app/getting-started/images#remote-images) for hosts that may not be trusted with their DNS entries. If no images.remotePatterns are configured, your app is not affected.

Severity

  • CVSS Score: 8.3 / 10 (High)
  • Vector String: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Next.js has cache poisoning in SSG/ISR rendering that leads to cross-user content substitution and persistent denial of service

CVE-2026-94484 / GHSA-mcj8-r9mp-w47p

More information

Details

Next.js applications that use a root-level catch-all page together with statically generated or Incremental Static Regeneration routes can have their shared response cache poisoned by a single unauthenticated crafted request.

Severity

  • CVSS Score: 6.3 / 10 (Medium)
  • Vector String: 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

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Next.js has information disclosure in App Router metadata image routes via dynamicParams bypass

CVE-2026-94485 / GHSA-f87g-xv8r-7p7x

More information

Details

In Next.js App Router applications built with webpack, metadata image routes such as opengraph-image and twitter-image ignore the dynamicParams route segment option. An attacker can request metadata image URLs for dynamic segments that were deliberately excluded from generateStaticParams().

Severity

  • CVSS Score: 6.3 / 10 (Medium)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Next.js has information disclosure in development server's Model Context Protocol endpoint

CVE-2026-94486 / GHSA-39w2-rjm5-chcv

More information

Details

The Next.js development server (next dev) exposes a Model Context Protocol endpoint that does not verify which website a request originates from, allowing a malicious website visited by the developer to read sensitive development data — including the project's location on disk, source code snippets from error reports, the route inventory, and development logs. Only applications run with next dev are affected. Production deployments do not serve this endpoint.

Severity

  • CVSS Score: 2.3 / 10 (Low)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Next.js has cache poisoning of SSG and ISR pages in self-hosted applications

CVE-2026-94543 / GHSA-4jqv-mc3x-m676

More information

Details

Self-hosted Next.js applications that use the Pages Router with statically generated (SSG) or incrementally regenerated (ISR) pages can have a page's cache entry replaced with content from a different route, causing the affected page to serve wrong content to every visitor until the entry is revalidated. Applications deployed on Vercel are not affected.

Severity

  • CVSS Score: 6.3 / 10 (Medium)
  • Vector String: 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

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Next.js: Pending use cache fill can leak Draft Mode content into regular responses and persisted pages

CVE-2026-94544 / GHSA-3w37-wq28-93x7

More information

Details

Pending use cache fills are shared across requests for the same key without distinguishing Draft Mode requests from regular requests. When two such requests overlap, the second request receives the first request's fill:

  • A regular request that overlaps an editor's Draft Mode request receives unpublished content, without any authentication.
  • A Draft Mode request that overlaps a regular request receives published content instead of the draft.

If the overlapping regular request prerenders a page — for example an on-demand prerender of a route that was not prerendered at build time — the unpublished content can be persisted into the generated page and served to all later visitors of that route until the page is revalidated. Since cached functions can be shared across routes, the poisoned page does not need to be the page the editor is previewing.

Sites are affected if they enable Cache Components (or experimental.useCache) and serve Draft Mode previews whose cached functions return draft-dependent content.

Severity

  • CVSS Score: 6.3 / 10 (Medium)
  • Vector String: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

next.js cache leak across root param values in nested 'use cache' functions

CVE-2026-103004 / GHSA-h694-7cp9-m8p3

More information

Details

Impact

With Cache Components enabled (cacheComponents: true), a 'use cache' function that calls another 'use cache' function that reads a root param can be keyed incorrectly when the inner call is served from an existing entry: the enclosing function's cache key then omits that root param. The enclosing entry is written once and reused for all root param values, so a response for one root param value can serve content produced for a different value — whether the page is prerendered at build time or at runtime, or rendered dynamically. Shared cache headers let downstream caches redistribute the content further.

What values are leaked cannot be attacker controlled. Which value's content is served depends only on which invocation wrote the entry first.

Workarounds

There are no known workarounds. Apps should upgrade to the patched version as soon as possible.

Severity

  • CVSS Score: 6.3 / 10 (Medium)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Release Notes

vercel/next.js (next)

v16.3.8

Compare Source

This release contains security fixes for the following advisories:

High:

Medium:

Low:

v16.3.7

Compare Source

[!NOTE]
This release is backporting bug fixes. It does not include all pending features/changes on canary.

Core Changes
  • turbo-tasks-backend: fix strongly consistent read hanging on a canceled task (#​98931)
Credits

Huge thanks to @​lukesandberg for helping!

Configuration

📅 Schedule: (in timezone America/New_York)

  • Branch creation
    • At any time (no schedule defined)
  • Automerge
    • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate Bot added dependencies Pull requests that update a dependency file security labels Oct 21, 2026
@renovate

renovate Bot commented Oct 21, 2026 •
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⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

  • any of the package files in this branch needs updating, or
  • the branch becomes conflicted, or
  • you click the rebase/retry checkbox if found above, or
  • you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: package-lock.json
npm warn Unknown env config "store". This will error in a future major version of npm. See `npm help npmrc` for supported config options.
npm error code EALLOWREMOTE
npm error Fetching packages of type "remote" have been disabled
npm error Refusing to fetch "https://registry.npmjs.org/@tailwindcss/oxide-wasm32-wasi/-/oxide-wasm32-wasi-4.3.3.tgz"
npm error A complete log of this run can be found in: /runner/cache/others/npm/_logs/2026-10-29T03_54_15_626Z-debug-0.log

@PChild
PChild merged commit cb0ece6 into main Oct 30, 2026
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@PChild
PChild deleted the renovate/npm-next-vulnerability branch October 30, 2026 21:30
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