How many CVEs have patched write?

1 published CVEs changed write in vercel/next.js, in 1 distinct patches totalling 13 changed lines, between 2026 and 2026.

What is the latest CVE that changed write?

CVE-2026-64647 (Next.js: Response Body Cache Confusion with Invalid UTF-8 Request Bodies), published 2026-07-27, changed lines 385 to 392 of packages/next/src/server/lib/incremental-cache/index.ts.

How does write compare to the rest of vercel/next.js?

vercel/next.js has 39 CVEs with a located fix in total; 1 of them changed write.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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Write

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Write

write in vercel/next.js: Patched by 1 CVEs

vercel/next.js

Function

write

Name: write in vercel/next.js: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

packages/next/src/server/lib/incremental-cache/index.ts

Last patched July 27, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

write in vercel/next.js was changed by 1 published CVE fixes in 2026, in 1 distinct patches that added or removed 13 lines in total.

vercel/next.js has 39 CVEs with a located fix in total, so 3% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed write, newest first, with the lines each fix touched.

On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References

Next.js: Response Body Cache Confusion with Invalid UTF-8 Request Bodies
CVE-2026-64647 · lines 385–392 · +3 −10
Medium · CVSS 6.3
EPSS 0.3%2026-07-27

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1_getPathnamepackages/next/src/server/lib/incremental-cache/index.ts2 CVEs · 2 patches2026
2calculateRevalidatepackages/next/src/server/lib/incremental-cache/index.ts2 CVEs · 2 patches2026
3setpackages/next/src/server/lib/incremental-cache/index.ts2 CVEs · 2 patches2026
4getpackages/next/src/server/lib/incremental-cache/index.ts2 CVEs · 2 patches2026
5toHexpackages/next/src/server/lib/incremental-cache/index.ts1 CVEs · 2 patches2026
6generateSimpleCacheKeypackages/next/src/server/lib/incremental-cache/index.ts1 CVEs · 2 patches2026
7hashStringpackages/next/src/server/lib/incremental-cache/index.ts1 CVEs · 2 patches2026
8bufferToHexpackages/next/src/server/lib/incremental-cache/index.ts1 CVEs · 2 patches2026

Other hotspots in the repository

Functions in vercel/next.js changed by the most CVE fixes.

createRedirectRenderResult2 CVEs · packages/next/src/server/app-render/action-handler.ts createPatchedFetcher2 CVEs · packages/next/src/server/lib/patch-fetch.ts handleAction2 CVEs · packages/next/src/server/app-render/action-handler.ts initialize2 CVEs · packages/next/src/server/lib/router-server.ts exportPageImpl2 CVEs · packages/next/src/export/worker.ts exportPagesPage2 CVEs · packages/next/src/export/routes/pages.ts

All patched functions in vercel/next.js

Frequently asked questions

Common questions about CVE fixes to write.

How many CVEs have patched write?: 1 published CVEs changed write in vercel/next.js, in 1 distinct patches totalling 13 changed lines, between 2026 and 2026.
What is the latest CVE that changed write?: CVE-2026-64647 (Next.js: Response Body Cache Confusion with Invalid UTF-8 Request Bodies), published 2026-07-27, changed lines 385 to 392 of packages/next/src/server/lib/incremental-cache/index.ts.
How does write compare to the rest of vercel/next.js?: vercel/next.js has 39 CVEs with a located fix in total; 1 of them changed write.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

packages/next/src/server/lib/incremental-cache/index.ts on GitHub (opens in a new tab)
All patched functions in vercel/next.js
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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