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This PR contains the following updates:
12.1.6->14.2.32GitHub Vulnerability Alerts
CVE-2023-46298
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.
CVE-2024-47831
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
CVE-2024-51479
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.
CVE-2025-29927
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
CVE-2025-57752
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
CVE-2025-55173
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
CVE-2025-57822
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
CVE-2025-32421
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.
Release Notes
vercel/next.js (next)
v14.2.32Compare Source
Core Changes
Credits
Huge thanks to @ztanner for helping!
v14.2.31Compare Source
Core Changes
Credits
Huge thanks to @styfle and @ztanner for helping!
v14.2.30Compare Source
Core Changes
config.allowedDevOrigins(#80410) (Learn More)Credits
Huge thanks to @ijjk and @ztanner for helping!
v14.2.29Compare Source
Core Changes
Credits
Huge thanks to @ijjk for helping!
v14.2.28Compare Source
Core Changes
Credits
Huge thanks to @ztanner for helping!
v14.2.27Compare Source
Core Changes
Credits
Huge thanks to @ztanner for helping!
v14.2.26Compare Source
Core Changes
v14.2.25Compare Source
Core Changes
Credits
Huge thanks to @ijjk for helping!
v14.2.24Compare Source
Core Changes
Credits
Huge thanks to @ztanner for helping!
v14.2.23Compare Source
Core Changes
Credits
Huge thanks to @styfle, @ijjk and @lubieowoce for helping!
v14.2.22Compare Source
Core Changes
Credits
Huge thanks to @unstubbable, @ijjk, and @ztanner for helping!
v14.2.21Compare Source
Core Changes
14898b6to178c267: #74115Misc Changes
Credits
Huge thanks to @unstubbable, @ztanner, and @styfle for helping!
v14.2.20Compare Source
Core Changes
Credits
Huge thanks to @wyattjoh for helping!
v14.2.19Compare Source
Core Changes
Misc Changes
Credits
Huge thanks to @ztanner and @ijjk for helping!
v14.2.18Compare Source
Core Changes
Credits
Huge thanks to @huozhi and @ijjk for helping!
v14.2.17Compare Source
Core Changes
Credits
Huge thanks to @huozhi, @ztanner, and @ijjk for helping!
v14.2.16Compare Source
v14.2.15Compare Source
Core Changes
Credits
Huge thanks to @ztanner, @agadzik, @huozhi, @styfle, @icyJoseph and @wyattjoh for helping!
v14.2.14Compare Source
Core Changes
Credits
Huge thanks to @styfle, @ztanner, @ijjk, @huozhi and @wyattjoh for helping!
v14.2.13Compare Source
Core Changes
Credits
Huge thanks to @raeyoung-kim, @huozhi, @devjiwonchoi, and @ijjk for helping!
v14.2.12Compare Source
Core Changes
Credits
Huge thanks to @alvarlagerlof, @wyattjoh, @delbaoliveira, and @ijjk for helping!
v14.2.11Compare Source
Core Changes
Credits
Huge thanks to @huozhi, @devjiwonchoi, and @ijjk for helping!
v14.2.10Compare Source
Core Changes
Credits
Huge thanks to @huozhi and @ijjk for helping!
v14.2.9Compare Source
Core Changes
Credits
Huge thanks to @huozhi, @ztanner, @ijjk, and @lubieowoce for helping!
v14.2.8Compare Source
What's Changed
Support
esmExternalsin app directoryReading cookies set in middleware in components and actions
Metadata and icons
fb:app_id,fb:admins) in generateMetaData (#65713)Parallel routes fixes
Draft mode and edge improvements
next/imagefixesServer actions improvements
Other changes
Create-next-app updates
create-next-apptemplate CSS (#66043)create-next-apppublic/ assets from local folder→ remote URL (#66931)Full Changelog: vercel/next.js@v14.2.7...v14.2.8
Huge thanks to everyone who contributed to this release:
@abhi12299, @delbaoliveira, @eps1lon, @ForsakenHarmony, @huozhi, @ijjk, @JoshuaKGoldberg, @leerob, @lubieowoce, @Netail, @ronanru, @samcx, @shuding, @sokra, @stylessh, @timfuhrmann, @wbinnssmith, @wyattjoh, @ypessoa, @ztanner
v14.2.7Compare Source
Core Changes
Credits
Huge thanks to @kjugi, @huozhi, @ztanner, @SukkaW, @marlier, @Kikobeats, @syi0808, @ijjk, and @samcx for helping!
v14.2.6Compare Source
Core Changes
v14.2.5Compare Source
Core Changes
Misc
Credits
Huge thanks to @devjiwonchoi, @ijjk, @emmerich, @huozhi, @kdy1, @kwonoj, @styfle, and @sokra for helping!
v14.2.4Compare Source
Core Changes
Credits
Huge thanks to @ztanner, @ijjk, @wbinnssmith, @huozhi, and @lubieowoce for helping!
v14.2.3Compare Source
Core Changes
Credits
Huge thanks to @huozhi, @samcx, @ztanner, @Jeffrey-Zutt, and @ijjk for helping!
v14.2.2Compare Source
Core Changes
Credits
Huge thanks to @shuding, @coltonehrman, @ztanner, @huozhi, @sokra, @Jeffrey-Zutt, @timneutkens, @wbinnssmith, @wiesson, @ijjk, @devjiwonchoi, and @bgw for helping!
v14.2.1Compare Source
Core Changes
Credits
Huge thanks to @sokra for helping!
v14.2.0Compare Source
Learn more: https://nextjs.org/blog/next-14-2
Core Changes
next infooutput: #60376tersertov5.27.0: #61068swc_coretov0.87.28: #60876unoptimizedprop: #61045_app: #60789optimizeServerReactto config-shared: #61106maxDurationto typescript plugin allowed exports: #59193swc_coretov0.89.x: #61086swc_coretov0.89.4: #61285preset-envmode ofstyled-jsxin webpack mode: #61306.tsfiles as.tsx: #61219swc_coretov0.89.6: #61426Configuration
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