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  4. CVE 2026 94485 nextjs information disclosure in nextjs app
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Back to active CVEs
Medium · CVSS 6.3CVE-2026-94485

Next.js: Information disclosure in Next.js App Router metadata image routes via dynamicParams bypass

Answer in brief

CVE-2026-94485 records a Medium severity (CVSS 6.3) vulnerability in Next.js: Information disclosure in Next.js App Router metadata image routes via dynamicParams bypass. The current sources do not mark it as known exploited. The current feed maps vercel/next.js (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 2, 2026Updated Oct 2, 2026Source checked Oct 2, 2026First seen by HOL Oct 2, 2026Material review Oct 2, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps vercel/next.js (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
vercel/next.jsgeneric>=16.0.0 <16.3.816.3.8

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for vercel/next.js.
  2. 2Review the reported fix. Update vercel/next.js to 16.3.8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 2, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

Next.js is a React framework for building full-stack web applications. From 16.0.0 until 16.3.8, the `next dev` development server exposes a Model Context Protocol endpoint without reliably restricting cross-site requests. A malicious website visited by a developer can reach the endpoint and read the project's disk location, source code snippets from error reports, route inventory, and development logs. Production deployments do not serve this endpoint. This issue is fixed in version 16.3.8.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Next.js: Server-Side Request Forgery in Image OptimizationSame vercel/next.js package
  • Next.js: Cache poisoning in Next.js SSG/ISR rendering leads to cross-user content substitution and persistent denial of serviceSame vercel/next.js package
  • Next.js: Information disclosure in the Next.js development server's Model Context Protocol endpointSame vercel/next.js package
  • Next.js: Cache poisoning of SSG and ISR pages in self-hosted Next.js applicationsSame vercel/next.js package
  • Next.js: Pending `use cache` fill can leak Draft Mode content into regular responses and persisted pagesSame vercel/next.js package
  • Missing Authorization in Meari IoT Cloud Platform OpenAPI ServiceSame generic ecosystem

Record context

Vulnerability class
Tool Poisoning
EPSS
Not reported
CWE IDs
CWE-346
Source
CVE List V5
Source checked
Oct 2, 2026
References
3 linked sources
Open source record