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zlib memory leak Node.js 24

PerformanceAnything with regards to Next.js performance.Anything with regards to Next.js performance.

Status: Open.

Bug

#89091 In vercel/next.js;

· izorg opened on Jan 27, 2026

22 linked PRs

8 comments

Another Memory Leak in next/image

bugIssue was opened via the bug report template.Issue was opened via the bug report template.

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

Status: Open.

#44685 In vercel/next.js;

· jaunruh opened on Jan 8, 2023

34 comments

Memory leak on async calls in dev server

Route HandlersRelated to Route Handlers.Related to Route Handlers.

Status: Open.

Bug

#85666 In vercel/next.js;

· pontasan opened on Nov 1, 2025

11 comments

NextJS build always going out of heap memory when building

Status: Open.

Bug

#76704 In vercel/next.js;

· Falling12 opened on Mar 2, 2025

23 comments

Memory leak with axios and AbortSignal in middleware in next >=15.4

MiddlewareRelated to Next.js Middleware.Related to Next.js Middleware.

Status: Open.

Bug

#84884 In vercel/next.js;

· liammcateer opened on Oct 15, 2025

13 comments

Investigate memory usage with Image Optimization enabled

bugIssue was opened via the bug report template.Issue was opened via the bug report template.

Image (next/image)Related to Next.js Image Optimization.Related to Next.js Image Optimization.

Status: Open.

#54482 In vercel/next.js;

· timneutkens opened on Aug 24, 2023

22 comments

⚠ Server is approaching the used memory threshold, restarting...

Status: Open.

Bug

#83275 In vercel/next.js;

· eliaweiss opened on Aug 31, 2025

26 comments

Next.js development high memory usage

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

Status: Open.

#54708 In vercel/next.js;

· timneutkens opened on Aug 29, 2023

1

153 comments

Null cache entries have size 0, preventing LRU eviction

locked

PerformanceAnything with regards to Next.js performance.Anything with regards to Next.js performance.

Route HandlersRelated to Route Handlers.Related to Route Handlers.

Status: Closed (completed).

Bug

#89033 In vercel/next.js;

· by iMUngHee was closed on Jan 27, 2026

1

1 comment

Default error page affects layout content

Error HandlingRelated to handling errors (e.g., error.tsx, global-error.tsx).Related to handling errors (e.g., error.tsx, global-error.tsx).

Status: Open.

Bug

#76710 In vercel/next.js;

· Netail opened on Mar 2, 2025

DYNAMIC_SERVER_USAGE error when using a server action to redirect to a route that uses cookies

bugIssue was opened via the bug report template.Issue was opened via the bug report template.

not staleA previously `stale` marked issue that is no longer stale.A previously `stale` marked issue that is no longer stale.

RuntimeRelated to Node.js or Edge Runtime with Next.js.Related to Node.js or Edge Runtime with Next.js.

Status: Open.

#67647 In vercel/next.js;

· joncoronel opened on Jul 11, 2024

2 comments

Docs: App Router docs for gracefully handling shutdowns still requires pages/_document.js

Status: Open.

Documentation

#51404 In vercel/next.js;

· osdiab opened on Jun 16, 2023

20 comments



Reached heap limit Allocation failed - JavaScript heap out of memory

RuntimeRelated to Node.js or Edge Runtime with Next.js.Related to Node.js or Edge Runtime with Next.js.

Status: Open.

Bug

#82511 In vercel/next.js;

· NeoSahadeo opened on Aug 10, 2025

43 comments

Next js build issue, FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory

bugIssue was opened via the bug report template.Issue was opened via the bug report template.

locked

Script (next/script)Related to Next.js Script Optimization.Related to Next.js Script Optimization.

staleThe issue has not seen recent activity.The issue has not seen recent activity.

Status: Not planned (skipped).

#66696 In vercel/next.js;

· by Elham13 was closed on Dec 15, 2025

3 comments

Inconsistent CSS resolution order with App Router

CSSRelated to CSS.Related to CSS.

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

Status: Open.

Bug

#64921 In vercel/next.js;

· GabenGar opened on Apr 23, 2024

102 comments

DeprecationWarning: The util._extend API is deprecated. Please use Object.assign() instead.

locked

Status: Closed (completed).

Bug

#80779 In vercel/next.js;

· by utkydz was closed on Jan 19, 2026

7 comments

Memory leak during load tests in dynamic rendering mode

Dynamic RoutesRelated to dynamic routes.Related to dynamic routes.

Status: Open.

Bug

#84648 In vercel/next.js;

· grzegorz-orbital opened on Oct 9, 2025

6 comments

High memory usage in development (10GB+)

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

PerformanceAnything with regards to Next.js performance.Anything with regards to Next.js performance.

Status: Open.

Bug

#78069 In vercel/next.js;

· diogomartino opened on Apr 12, 2025

35 comments

Nextjs includes all client components in the bundle when at least one client component is rendered from a server component (app-folder)

bugIssue was opened via the bug report template.Issue was opened via the bug report template.

linear: nextConfirmed issue that is tracked by the Next.js team.Confirmed issue that is tracked by the Next.js team.

SWCRelated to minification/transpilation in Next.js.Related to minification/transpilation in Next.js.

WebpackRelated to Webpack with Next.js.Related to Webpack with Next.js.

Status: Open.

#69865 In vercel/next.js;

· EvgeniyKorshun opened on Sep 9, 2024

1

19 comments

Memory leak in optimizeCss

bugIssue was opened via the bug report template.Issue was opened via the bug report template.

not staleA previously `stale` marked issue that is no longer stale.A previously `stale` marked issue that is no longer stale.

Status: Open.

#60473 In vercel/next.js;

· dmgawel opened on Jan 10, 2024

3 comments

NextJS version 14 & 15 got high memory usage in production builds

locked

RuntimeRelated to Node.js or Edge Runtime with Next.js.Related to Node.js or Edge Runtime with Next.js.

Status: Closed (completed).

Bug

#79588 In vercel/next.js;

· by NoatToan was closed on Jul 21, 2025

12 comments

[High] Memory Leak in next.js

invalid linkThe issue was auto-closed due to a missing/invalid reproduction link. A new issue should be opened.The issue was auto-closed due to a missing/invalid reproduction link. A new issue should be opened.

Status: Closed (completed).

#89542 In vercel/next.js;

· by admin1douyin was closed on Feb 6, 2026

1 comment

zlib memory leak Node.js 24

invalid linkThe issue was auto-closed due to a missing/invalid reproduction link. A new issue should be opened.The issue was auto-closed due to a missing/invalid reproduction link. A new issue should be opened.

PerformanceAnything with regards to Next.js performance.Anything with regards to Next.js performance.

Status: Closed (completed).

Bug

#89090 In vercel/next.js;

· by izorg was closed on Jan 27, 2026

1 comment

memory leak using fetch in standalone mode. Response of request stays in the js-heap

locked

Status: Duplicate of an existing item.

Bug

#75686 In vercel/next.js;

· by schalterDev was closed on Feb 5, 2025

· Duplicate

2 comments

Excessive Caching Causes Memory Leak, but can't get next to stop caching or clear

locked

Status: Closed (completed).

Bug

#75314 In vercel/next.js;

· by kbanta11 was closed on Jan 29, 2025

1 comment