[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
next (source)	16.3.5 → 16.3.8

---

Next.js: Remote Code Execution in next/og ImageResponse

GHSA-vcvr-r3jv-pc5j

More information

Details

Impact

The Node.js ImageResponse implementation from next/og is affected by an upstream vulnerability. This can lead to remote code execution.

Affected applications pass attacker-controlled values into SVG content, attributes, or styles during image generation:

import { ImageResponse } from 'next/og'

export async function GET(request: Request) {
  const value = new URL(request.url).searchParams.get('value') ?? ''

  return new ImageResponse(
    <svg width="1200" height="630">
      <title>{value}</title>
    </svg>
  )
}

Applications using the Edge ImageResponse implementation, or applications that do not pass attacker-controlled values into SVG content, attributes, or styles, are not affected.

Workaround

If upgrading is not immediately possible, do not pass attacker-controlled values into SVG content, attributes, or styles rendered by the Node.js ImageResponse implementation from next/og.

Severity

• CVSS Score: 9.5 / 10 (Critical)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References

• https://github.com/vercel/next.js/security/advisories/GHSA-vcvr-r3jv-pc5j
• https://github.com/vercel/satori/security/advisories/GHSA-wx4j-mvgx-mqwp
• https://github.com/vercel/next.js/commit/868fad38690d72088868f299fa2bef339b26838e
• https://github.com/vercel/next.js/releases/tag/v16.3.6
• https://github.com/advisories/GHSA-vcvr-r3jv-pc5j

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

---

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

• https://github.com/vercel/next.js/security/advisories/GHSA-cjq9-62q9-8jv4
• https://nvd.nist.gov/vuln/detail/CVE-2026-94483
• https://github.com/vercel/next.js/commit/e002ad68bd676bb0ed0c87bb22e3590304763e0b
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/advisories/GHSA-cjq9-62q9-8jv4

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

• https://github.com/vercel/next.js/security/advisories/GHSA-mcj8-r9mp-w47p
• https://nvd.nist.gov/vuln/detail/CVE-2026-94484
• https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8
• https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52
• https://github.com/vercel/next.js/releases/tag/v15.5.27
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/advisories/GHSA-mcj8-r9mp-w47p

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

• https://github.com/vercel/next.js/security/advisories/GHSA-f87g-xv8r-7p7x
• https://nvd.nist.gov/vuln/detail/CVE-2026-94485
• https://github.com/vercel/next.js/commit/2d9f50a409312696145b82b3157aadb6b1fef476
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/advisories/GHSA-f87g-xv8r-7p7x

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

• https://github.com/vercel/next.js/security/advisories/GHSA-39w2-rjm5-chcv
• https://nvd.nist.gov/vuln/detail/CVE-2026-94486
• https://github.com/vercel/next.js/commit/2d9f50a409312696145b82b3157aadb6b1fef476
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/advisories/GHSA-39w2-rjm5-chcv

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

• https://github.com/vercel/next.js/security/advisories/GHSA-4jqv-mc3x-m676
• https://nvd.nist.gov/vuln/detail/CVE-2026-94543
• https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8
• https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52
• https://github.com/vercel/next.js/releases/tag/v15.5.27
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/advisories/GHSA-4jqv-mc3x-m676

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

• https://github.com/vercel/next.js/security/advisories/GHSA-3w37-wq28-93x7
• https://nvd.nist.gov/vuln/detail/CVE-2026-94544
• https://github.com/vercel/next.js/commit/bd9214f9a32854a011bf5fe58e481dffe1bbf598
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/advisories/GHSA-3w37-wq28-93x7

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

• https://github.com/vercel/next.js/security/advisories/GHSA-h694-7cp9-m8p3
• https://nvd.nist.gov/vuln/detail/CVE-2026-103004
• https://github.com/vercel/next.js/commit/e92db4536a7f34ae2dbda583cfa1b4e0d06d1865
• https://github.com/vercel/next.js/releases/tag/v16.3.8
• https://github.com/advisories/GHSA-h694-7cp9-m8p3

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:

• Server-Side Request Forgery in Image Optimization

Medium:

• Information disclosure in Next.js App Router metadata image routes via dynamicParams bypass
• Cache poisoning of SSG and ISR pages in self-hosted Next.js applications
• Cache poisoning in Next.js SSG/ISR rendering leads to cross-user content substitution and persistent denial of service
• Pending use cache fill can leak Draft Mode content into regular responses and persisted pages
• Cache leak across root param values in nested 'use cache' functions

Low:

• Information disclosure in the Next.js development server's Model Context Protocol endpoint

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!

v16.3.6

Compare Source

This release contains a security fix for GHSA-vcvr-r3jv-pc5j: Remote Code Execution in next/og ImageResponse

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[vercel]

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Project	Deployment	Actions	Updated
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[github-actions]

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Status	Category	Percentage	Covered / Total
🔵	Lines	30.23%	179 / 592
🔵	Statements	30.98%	198 / 639
🔵	Functions	22.9%	41 / 179
🔵	Branches	24.45%	147 / 601

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​next@​16.3.8

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[socket-security]

All alerts resolved. Learn more about Socket for GitHub.

This PR previously contained dependency changes with security issues that have been resolved, removed, or ignored.

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