fix(deps): Update dependency next to v16 [SECURITY]#150
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This PR contains the following updates:
13.0.5→16.1.5Next.js missing cache-control header may lead to CDN caching empty reply
CVE-2023-46298 / GHSA-c59h-r6p8-q9wc
More information
Details
Next.js before 13.4.20-canary.13 lacks a cache-control header and thus empty prefetch responses may sometimes be cached by a CDN, causing a denial of service to all users requesting the same URL via that CDN. Cloudflare considers these requests cacheable assets.
Severity
Low
References
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Denial of Service condition in Next.js image optimization
CVE-2024-47831 / GHSA-g77x-44xx-532m
More information
Details
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:
next.config.jsfile is configured withimages.unoptimizedset totrueorimages.loaderset to a non-default value.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.jsfile has eitherimages.unoptimized,images.loaderorimages.loaderFileassigned.Credits
Brandon Dahler (brandondahler), AWS
Dimitrios Vlastaras
Severity
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:UReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js authorization bypass vulnerability
CVE-2024-51479 / GHSA-7gfc-8cq8-jh5f
More information
Details
Impact
If a Next.js application is performing authorization in middleware based on pathname, it was possible for this authorization to be bypassed.
Patches
This issue was patched in Next.js
14.2.15and 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.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js Allows a Denial of Service (DoS) with Server Actions
CVE-2024-56332 / GHSA-7m27-7ghc-44w9
More information
Details
Impact
A Denial of Service (DoS) attack allows attackers to construct requests that leaves requests to Server Actions hanging until the hosting provider cancels the function execution.
Note: Next.js server is idle during that time and only keeps the connection open. CPU and memory footprint are low during that time.
Deployments without any protection against long running Server Action invocations are especially vulnerable. Hosting providers like Vercel or Netlify set a default maximum duration on function execution to reduce the risk of excessive billing.
This is the same issue as if the incoming HTTP request has an invalid
Content-Lengthheader or never closes. If the host has no other mitigations to those then this vulnerability is novel.This vulnerability affects only Next.js deployments using Server Actions.
Patches
This vulnerability was resolved in Next.js 14.2.21, 15.1.2, and 13.5.8. We recommend that users upgrade to a safe version.
Workarounds
There are no official workarounds for this vulnerability.
Credits
Thanks to the PackDraw team for responsibly disclosing this vulnerability.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Information exposure in Next.js dev server due to lack of origin verification
CVE-2025-48068 / GHSA-3h52-269p-cp9r
More information
Details
Summary
A low-severity vulnerability in Next.js has been fixed in version 15.2.2. This issue may have allowed limited source code exposure when the dev server was running with the App Router enabled. The vulnerability only affects local development environments and requires the user to visit a malicious webpage while
npm run devis active.Because the mitigation is potentially a breaking change for some development setups, to opt-in to the fix, you must configure
allowedDevOriginsin your next config after upgrading to a patched version. Learn more.Learn more: https://vercel.com/changelog/cve-2025-48068
Credit
Thanks to sapphi-red and Radman Siddiki for responsibly disclosing this issue.
Severity
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js Affected by Cache Key Confusion for Image Optimization API Routes
CVE-2025-57752 / GHSA-g5qg-72qw-gw5v
More information
Details
A vulnerability in Next.js Image Optimization has been fixed in v15.4.5 and v14.2.31. When images returned from API routes vary based on request headers (such as
CookieorAuthorization), these responses could be incorrectly cached and served to unauthorized users due to a cache key confusion bug.All users are encouraged to upgrade if they use API routes to serve images that depend on request headers and have image optimization enabled.
More details at Vercel Changelog
Severity
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Authorization Bypass in Next.js Middleware
CVE-2025-29927 / GHSA-f82v-jwr5-mffw
More information
Details
Impact
It is possible to bypass authorization checks within a Next.js application, if the authorization check occurs in middleware.
Patches
15.2.314.2.25Note: Next.js deployments hosted on Vercel are automatically protected against this vulnerability.
Workaround
If patching to a safe version is infeasible, we recommend that you prevent external user requests which contain the
x-middleware-subrequestheader from reaching your Next.js application.Credits
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js Content Injection Vulnerability for Image Optimization
CVE-2025-55173 / GHSA-xv57-4mr9-wg8v
More information
Details
A vulnerability in Next.js Image Optimization has been fixed in v15.4.5 and v14.2.31. The issue allowed attacker-controlled external image sources to trigger file downloads with arbitrary content and filenames under specific configurations. This behavior could be abused for phishing or malicious file delivery.
All users relying on
images.domainsorimages.remotePatternsare encouraged to upgrade and verify that external image sources are strictly validated.More details at Vercel Changelog
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js Improper Middleware Redirect Handling Leads to SSRF
CVE-2025-57822 / GHSA-4342-x723-ch2f
More information
Details
A vulnerability in Next.js Middleware has been fixed in v14.2.32 and v15.4.7. The issue occurred when request headers were directly passed into
NextResponse.next(). In self-hosted applications, this could allow Server-Side Request Forgery (SSRF) if certain sensitive headers from the incoming request were reflected back into the response.All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the
next()function.More details at Vercel Changelog
Severity
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js Race Condition to Cache Poisoning
CVE-2025-32421 / GHSA-qpjv-v59x-3qc4
More information
Details
Summary
We received a responsible disclosure from Allam Rachid (zhero) for a low-severity race-condition vulnerability in Next.js. This issue only affects the Pages Router under certain misconfigurations, causing normal endpoints to serve
pagePropsdata instead of standard HTML.Learn more here
Credit
Thank you to Allam Rachid (zhero) for the responsible disclosure. This research was rewarded as part of our bug bounty program.
Severity
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next Vulnerable to Denial of Service with Server Components
GHSA-mwv6-3258-q52c
More information
Details
A vulnerability affects certain React packages for versions 19.0.0, 19.0.1, 19.1.0, 19.1.1, 19.1.2, 19.2.0, and 19.2.1 and frameworks that use the affected packages, including Next.js 15.x and 16.x using the App Router. The issue is tracked upstream as CVE-2025-55184.
A malicious HTTP request can be crafted and sent to any App Router endpoint that, when deserialized, can cause the server process to hang and consume CPU. This can result in denial of service in unpatched environments.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next Server Actions Source Code Exposure
GHSA-w37m-7fhw-fmv9
More information
Details
A vulnerability affects certain React packages for versions 19.0.0, 19.0.1, 19.1.0, 19.1.1, 19.1.2, 19.2.0, and 19.2.1 and frameworks that use the affected packages, including Next.js 15.x and 16.x using the App Router. The issue is tracked upstream as CVE-2025-55183.
A malicious HTTP request can be crafted and sent to any App Router endpoint that can return the compiled source code of Server Functions. This could reveal business logic, but would not expose secrets unless they were hardcoded directly into Server Function code.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js self-hosted applications vulnerable to DoS via Image Optimizer remotePatterns configuration
CVE-2025-59471 / GHSA-9g9p-9gw9-jx7f
More information
Details
A DoS vulnerability exists in self-hosted Next.js applications that have
remotePatternsconfigured for the Image Optimizer. The image optimization endpoint (/_next/image) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires thatremotePatternsis configured to allow image optimization from external domains and that the attacker can serve or control a large image on an allowed domain.Strongly consider upgrading to 15.5.10 and 16.1.5 to reduce risk and prevent availability issues in Next applications.
Severity
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js HTTP request deserialization can lead to DoS when using insecure React Server Components
GHSA-h25m-26qc-wcjf
More information
Details
A vulnerability affects certain React Server Components packages for versions 19.0.x, 19.1.x, and 19.2.x and frameworks that use the affected packages, including Next.js 13.x, 14.x, 15.x, and 16.x using the App Router. The issue is tracked upstream as CVE-2026-23864.
A specially crafted HTTP request can be sent to any App Router Server Function endpoint that, when deserialized, may trigger excessive CPU usage, out-of-memory exceptions, or server crashes. This can result in denial of service in unpatched environments.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Next.js has Unbounded Memory Consumption via PPR Resume Endpoint
CVE-2025-59472 / GHSA-5f7q-jpqc-wp7h
More information
Details
A denial of service vulnerability exists in Next.js versions with Partial Prerendering (PPR) enabled when running in minimal mode. The PPR resume endpoint accepts unauthenticated POST requests with the
Next-Resume: 1header and processes attacker-controlled postponed state data. Two closely related vulnerabilities allow an attacker to crash the server process through memory exhaustion:Unbounded request body buffering: The server buffers the entire POST request body into memory using
Buffer.concat()without enforcing any size limit, allowing arbitrarily large payloads to exhaust available memory.Unbounded decompression (zipbomb): The resume data cache is decompressed using
inflateSync()without limiting the decompressed output size. A small compressed payload can expand to hundreds of megabytes or gigabytes, causing memory exhaustion.Both attack vectors result in a fatal V8 out-of-memory error (
FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory) causing the Node.js process to terminate. The zipbomb variant is particularly dangerous as it can bypass reverse proxy request size limits while still causing large memory allocation on the server.To be affected, an application must run with
experimental.ppr: trueorcacheComponents: trueconfigured along with the NEXT_PRIVATE_MINIMAL_MODE=1 environment variable.Strongly consider upgrading to 15.6.0-canary.61 or 16.1.5 to reduce risk and prevent availability issues in Next applications.
Severity
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Release Notes
vercel/next.js (next)
v16.1.5Compare Source
Please refer the following changelogs for more information about this security release:
https://vercel.com/changelog/summaries-of-cve-2025-59471-and-cve-2025-59472
https://vercel.com/changelog/summary-of-cve-2026-23864
v16.1.4Compare Source
v16.1.3Compare Source
v16.1.2Compare Source
v16.1.1Compare Source
Core Changes
Credits
Huge thanks to @sokra and @ztanner for helping!
v16.1.0Compare Source
v16.0.11Compare Source
Please see this changelog for more information about this security patch.
v16.0.10Compare Source
v16.0.9Compare Source
v16.0.8Compare Source
v16.0.7Compare Source
v16.0.6Compare Source
v16.0.5Compare Source
Core Changes
Credits
Huge thanks to @lucasadrianof for helping!
v16.0.4Compare Source
v16.0.3Compare Source
Core Changes
next dev --inspect: #85037b4455a6e-20251027to4f931700-20251029: #85518cacheLifetypes out of the webpack plugin and into the dev bundler directly: #85539'use cache'in page/layout component: #855194f931700-20251029to561ee24d-20251101: #85670'next'plugin: #85749561ee24d-20251101to67f7d47a-20251103: #8576267f7d47a-20251103tof646e8ff-20251104: #85772f646e8ff-20251104todd048c3b-20251105: #85819dd048c3b-20251105tofa50caf5-20251107: #85906'use cache'call stacks: #85966fa50caf5-20251107to52684925-20251110: #85980Misc Changes
opt-level = sfor not frequently used crates: #85426experimental.cacheLife: #85467createSandbox: #85507--debug-build-pathsinstead ofNEXT_PRIVATE_APP_PATHS: #85504completion.rsa bit: #84863maxRetriesandhardErrorparameters: #85536cells are created inresolve_rawto make cell allocation order deterministic.: #85525assert*->waitFor*when the util is not instant: #85450RegExp-like implementations incheck: #85537after()tests: #85566test/integration/in flake detection tests: #85590run-for-changescript: #85619extern crateandmacro_usesyntax: #85778NEXT_TEST_PREFER_OFFLINEininstall-native.mjs: #85850next-core/src/next_client_reference/visit_client_reference.rs: #85843non_operation_vc_strongly_consistentfeature usage from next-api: #85874turbo-tasks-macros-sharedcrate intoturbo-tasks-macros: #85917next.browserWithResponse(): #85911'use cache'functions to reduce function allocations: #85904font-familydeclaration: #85913Auth0Link: #85953cacheLife&cacheTagin client: #85872cacheLife&cacheTag: #85875sharpandunrs-resolver: #83168evaluateto take module_graph: #85971encryptActionBoundArgs/decryptActionBoundArgsimports: #86015Configuration
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