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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.domains or images.remotePatterns are encouraged to upgrade and verify that external image sources are strictly validated.
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 Cookie or Authorization), 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.
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.
Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.
This PR includes no changesets
When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types
renovatebot
changed the title
fix(deps): update dependency next to v15.4.5 [security]
fix(deps): update dependency next to v15.4.7 [security]
Aug 31, 2025
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This PR contains the following updates:
15.3.3->15.4.7GitHub Vulnerability Alerts
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-2025-57752
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-2025-57822
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
Release Notes
vercel/next.js (next)
v15.4.7Compare Source
v15.4.6Compare Source
Core Changes
_errorpage'sreq.urlcan be overwritten to dynamic param on minimal mode (#82347)?dplto fonts in/_next/static/media(#82384)Credits
Huge thanks to @devjiwonchoi, @ijjk, and @styfle for helping!
v15.4.5Compare Source
v15.4.4Compare Source
v15.4.3Compare Source
v15.4.2Compare Source
v15.4.1Compare Source
v15.4.0Compare Source
v15.3.5Compare Source
Core Changes
Misc Changes
Credits
Huge thanks to @ztanner, @mischnic, and @bgw for helping!
v15.3.4Compare Source
Core Changes
Credits
Huge thanks to @huozhi for helping!
Configuration
📅 Schedule: Branch creation - "" in timezone Europe/Zurich, Automerge - At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
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