StackPrism

npm package

next 16.1.0 vulnerabilities, and the version that fixes all of them

next 16.1.0 has 38 known vulnerabilities (16 rated high or critical); 16.3.8 fixes all of them.

npm (opens in a new tab) describes it as “The React Framework”

Known vulnerabilities
38
16 rated high or critical
Released
Dec 18, 2025
Latest is 16.4.2
Downloads last week
38K
Under 1% of next downloads
Next.js 16 support
Supported
Licence
MIT
OpenSSF Scorecard
6.2/10
vercel/next.js (opens in a new tab)
Pulls in
48 packages
Resolved by deps.dev

What to upgrade to

16.3.8 is the closest release with no known vulnerabilities.

  • 16.3.8Upgrade to this

    Fixes all 38 known vulnerabilities. Released Sep 30, 2026.

    No known vulnerabilities

  • 16.4.2

    Newest 16.x release and the latest release. Released Oct 15, 2026.

    No known vulnerabilities

16.3.8 came out on Sep 30, 2026. A coding agent trained before then doesn’t know it exists, so it may suggest an older release. AI knowledge cutoff dates

Hand the fix to your coding agent

One task with the upgrade, the file to change and why. Paste it into Claude Code, Cursor or Codex.

Findings

Every advisory for next 16.1.0

Known exploited first (CISA KEV), then by how likely they are to be exploited (FIRST EPSS), then by severity. Each id links to its OSV.dev record.

  1. CriticalGHSA-h25m-26qc-wcjf on OSV.dev (opens in a new tab)EPSS: top 16%

    Next.js HTTP request deserialization can lead to DoS when using insecure React Server Components

    Fixed in 16.1.5. Published Jan 28, 2026.

  2. CriticalCVE-2026-75604 on OSV.dev (opens in a new tab)GHSA-p293-qw3h-jr36EPSS: top 19%

    Next.js: Unauthenticated Remote Code Execution on windows-hosted servers

    Fixed in 16.3.3. Published Sep 8, 2026.

  3. CriticalCVE-2026-44578 on OSV.dev (opens in a new tab)GHSA-c4j6-fc7j-m34rEPSS: top 21%

    Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades

    Fixed in 16.2.5. Published May 11, 2026.

  4. CriticalGHSA-8h8q-6873-q5fj on OSV.dev (opens in a new tab)EPSS: top 26%

    Next.js Vulnerable to Denial of Service with Server Components

    Fixed in 16.2.5. Published May 11, 2026.

  5. WarningCVE-2026-44577 on OSV.dev (opens in a new tab)GHSA-h64f-5h5j-jqjhEPSS: top 40%

    Next.js has a Denial of Service in the Image Optimization API

    Fixed in 16.2.5. Published May 11, 2026.

  6. WarningCVE-2026-27980 on OSV.dev (opens in a new tab)GHSA-3x4c-7xq6-9pq8EPSS: top 42%

    Next.js: Unbounded next/image disk cache growth can exhaust storage

    Fixed in 16.1.7. Published Mar 17, 2026.

  7. WarningCVE-2026-27979 on OSV.dev (opens in a new tab)GHSA-h27x-g6w4-24gqEPSS: top 42%

    Next.js: Unbounded postponed resume buffering can lead to DoS

    Fixed in 16.1.7. Published Mar 17, 2026.

  8. CriticalCVE-2026-64641 on OSV.dev (opens in a new tab)GHSA-m99w-x7hq-7vfjEPSS: top 43%

    Next.js: Denial of Service in App Router using Server Actions

    Fixed in 16.2.11. Published Jul 22, 2026.

  9. CriticalCVE-2026-44579 on OSV.dev (opens in a new tab)GHSA-mg66-mrh9-m8jxEPSS: top 46%

    Next.js vulnerable to Denial of Service via connection exhaustion in applications using Cache Components

    Fixed in 16.2.5. Published May 11, 2026.

  10. CriticalCVE-2026-45109 on OSV.dev (opens in a new tab)GHSA-26hh-7cqf-hhc6EPSS: top 46%

    Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes - Incomplete Fix Follow-Up

    Fixed in 16.2.6. Published May 11, 2026.

  11. CriticalCVE-2026-44575 on OSV.dev (opens in a new tab)GHSA-267c-6grr-h53fEPSS: top 46%

    Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes

    Fixed in 16.2.5. Published May 11, 2026.

  12. CriticalCVE-2026-44573 on OSV.dev (opens in a new tab)GHSA-36qx-fr4f-26g5EPSS: top 46%

    Next.js has a Middleware / Proxy bypass in Pages Router applications using i18n

    Fixed in 16.2.5. Published May 11, 2026.

  13. CriticalCVE-2026-44574 on OSV.dev (opens in a new tab)GHSA-492v-c6pp-mqqvEPSS: top 50%

    Next.js has a Middleware / Proxy bypass through dynamic route parameter injection

    Fixed in 16.2.5. Published May 11, 2026.

  14. WarningCVE-2026-64644 on OSV.dev (opens in a new tab)GHSA-q8wf-6r8g-63chEPSS: top 50%

    Next.js: Denial of Service in the Image Optimization API using SVGs

    Fixed in 16.2.11. Published Jul 22, 2026.

  15. CriticalCVE-2026-64642 on OSV.dev (opens in a new tab)GHSA-6gpp-xcg3-4w24EPSS: top 51%

    Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale

    Fixed in 16.2.11. Published Jul 22, 2026.

  16. WarningCVE-2026-29057 on OSV.dev (opens in a new tab)GHSA-ggv3-7p47-pfv8EPSS: top 56%

    Next.js: HTTP request smuggling in rewrites

    Fixed in 16.1.7. Published Mar 17, 2026.

  17. WarningCVE-2026-64646 on OSV.dev (opens in a new tab)GHSA-4c39-4ccg-62r3EPSS: top 57%

    Next.js: Unbounded Server Action payload in Edge runtime

    Fixed in 16.2.11. Published Jul 22, 2026.

  18. WarningCVE-2026-64643 on OSV.dev (opens in a new tab)GHSA-955p-x3mx-jcvpEPSS: top 58%

    Next.js: Unauthenticated disclosure of internal Server Function endpoints

    Fixed in 16.2.11. Published Jul 22, 2026.

  19. WarningCVE-2025-59471 on OSV.dev (opens in a new tab)GHSA-9g9p-9gw9-jx7fEPSS: top 59%

    Next.js self-hosted applications vulnerable to DoS via Image Optimizer remotePatterns configuration

    Fixed in 16.1.5. Published Jan 27, 2026.

  20. CriticalCVE-2026-64649 on OSV.dev (opens in a new tab)GHSA-89xv-2m56-2m9xEPSS: top 62%

    Next.js: Server-Side Request Forgery in Server Actions on custom servers

    Fixed in 16.2.11. Published Jul 22, 2026.

  21. WarningCVE-2025-59472 on OSV.dev (opens in a new tab)GHSA-5f7q-jpqc-wp7hEPSS: top 66%

    Next.js has Unbounded Memory Consumption via PPR Resume Endpoint

    Fixed in 16.1.5. Published Jan 28, 2026.

  22. CriticalCVE-2026-64645 on OSV.dev (opens in a new tab)GHSA-p9j2-gv94-2wf4EPSS: top 66%

    Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname

    Fixed in 16.2.11. Published Jul 22, 2026.

  23. WarningCVE-2026-64648 on OSV.dev (opens in a new tab)GHSA-68g3-v927-f742EPSS: top 75%

    Next.js: Cache confusion of response bodies for requests with bodies

    Fixed in 16.2.11. Published Jul 22, 2026.

  24. WarningCVE-2026-64647 on OSV.dev (opens in a new tab)GHSA-4633-3j49-mh5qEPSS: top 77%

    Next.js: Cache confusion of response bodies for requests with bodies containing invalid UTF-8 byte sequences

    Fixed in 16.2.11. Published Jul 22, 2026.

  25. WarningCVE-2026-44576 on OSV.dev (opens in a new tab)GHSA-wfc6-r584-vfw7EPSS: top 79%

    Next.js vulnerable to cache poisoning in React Server Component responses

    Fixed in 16.2.5. Published May 11, 2026.

  26. WarningCVE-2026-94543 on OSV.dev (opens in a new tab)GHSA-4jqv-mc3x-m676EPSS: top 81%

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

    Fixed in 16.3.8. Published Oct 7, 2026.

  27. WarningCVE-2026-44580 on OSV.dev (opens in a new tab)GHSA-gx5p-jg67-6x7hEPSS: top 85%

    Next.js has cross-site scripting in beforeInteractive scripts with untrusted input

    Fixed in 16.2.5. Published May 11, 2026.

  28. WarningCVE-2026-44581 on OSV.dev (opens in a new tab)GHSA-ffhc-5mcf-pf4qEPSS: top 86%

    Next.js vulnerable to cross-site scripting in App Router applications using CSP nonces

    Fixed in 16.2.5. Published May 11, 2026.

  29. CriticalCVE-2026-94483 on OSV.dev (opens in a new tab)GHSA-cjq9-62q9-8jv4EPSS: top 86%

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

    Fixed in 16.3.8. Published Oct 7, 2026.

  30. WarningCVE-2026-94484 on OSV.dev (opens in a new tab)GHSA-mcj8-r9mp-w47pEPSS: top 86%

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

    Fixed in 16.3.8. Published Oct 7, 2026.

  31. WarningCVE-2026-27978 on OSV.dev (opens in a new tab)GHSA-mq59-m269-xvcxEPSS: top 87%

    Next.js: null origin can bypass Server Actions CSRF checks

    Fixed in 16.1.7. Published Mar 17, 2026.

  32. LowCVE-2026-27977 on OSV.dev (opens in a new tab)GHSA-jcc7-9wpm-mj36EPSS: top 89%

    Next.js: null origin can bypass dev HMR websocket CSRF checks

    Fixed in 16.1.7. Published Mar 17, 2026.

  33. LowCVE-2026-44572 on OSV.dev (opens in a new tab)GHSA-3g8h-86w9-wvmqEPSS: top 91%

    Next.js's Middleware / Proxy redirects can be cache-poisoned

    Fixed in 16.2.5. Published May 11, 2026.

  34. LowCVE-2026-44582 on OSV.dev (opens in a new tab)GHSA-vfv6-92ff-j949EPSS: top 94%

    Next.js vulnerable to cache poisoning via collisions in React Server Component cache-busting

    Fixed in 16.2.5. Published May 11, 2026.

  35. WarningCVE-2026-94485 on OSV.dev (opens in a new tab)GHSA-f87g-xv8r-7p7xEPSS: top 97%

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

    Fixed in 16.3.8. Published Oct 7, 2026.

  36. LowCVE-2026-94486 on OSV.dev (opens in a new tab)GHSA-39w2-rjm5-chcvEPSS: top 99%

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

    Fixed in 16.3.8. Published Oct 7, 2026.

  37. CriticalGHSA-2xp9-vwfh-vxw4 on OSV.dev (opens in a new tab)

    Next.js: Unauthenticated Remote Code Execution in Image Optimization API when AVIF files are used

    Fixed in 16.3.3. Published Sep 8, 2026.

  38. CriticalGHSA-q4gf-8mx6-v5v3 on OSV.dev (opens in a new tab)

    Next.js has a Denial of Service with Server Components

    Fixed in 16.2.3. Published Apr 10, 2026.

Who is still on a vulnerable next

61% of last week’s 40.8M next downloads went to versions with known vulnerabilities.

From npm’s per-version download counts for the last 7 days, each version checked against OSV.dev. The versions checked cover over 99% of downloads.

Is next the only one?

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How this page is checked

StackPrism asks OSV.dev which advisories affect exactly next 16.1.0, merges duplicates filed under several ids, and ranks them with CISA’s Known Exploited Vulnerabilities list and FIRST EPSS. Release dates and deprecation come from deps.dev and npm, support dates from endoflife.date. No AI writes this page: every sentence comes from that data, refreshed every few hours.

Last checked against npm, OSV.dev, deps.dev, CISA KEV, FIRST EPSS and endoflife.date.