How many CVEs have patched createPatchedFetcher?

2 published CVEs changed createPatchedFetcher in vercel/next.js, in 4 distinct patches totalling 16 changed lines, between 2026 and 2026.

What is the latest CVE that changed createPatchedFetcher?

CVE-2026-64648 (Next.js: Response Body Cache Confusion for Requests Containing Bodies), published 2026-07-27, changed lines 340 to 351 of packages/next/src/server/lib/patch-fetch.ts.

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

vercel/next.js has 39 CVEs with a located fix in total; 2 of them changed createPatchedFetcher.

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.

RadicalNotion.AI

Security data

Weaknesses (CWE)The MITRE CWE weakness catalog
Attack Patterns (CAPEC)MITRE CAPEC attack patterns
CNAsNumbering authorities and report cards
VendorsVulnerabilities by vendor
Patched FunctionsWhere CVE fixes land in code

Tools

CVSS CalculatorScore CVSS 4.0, 3.1, 3.0 & 2.0
Badge BuilderEmbeddable SVG badges for READMEs

Resources

LearnSecurity guides
Data SourcesCVE data sources

About Blog Pricing Demo

Home
Patched Functions
Vercel
Next.js
CreatePatchedFetcher

RadicalNotion.AI

We do not sell or share your personal information.

Security Data

CWE Directory
CAPEC Directory
CNA Directory
CNA Leaderboard
CNA Report Cards
Vendor Directory
Patched Functions
Data Sources

Calculators

CVSS Calculator
CVSS 4.0
CVSS 3.1
CVSS 3.0
CVSS 2.0
Badge Builder

Platform

My Vulnerabilities
Insights
Notifications
Pricing

Learn

Guides
What is a CVE?
What is CVSS?
The CISA KEV catalog
What is EPSS?

Company

About
Blog
Careers
Contact
Demo

Account

Legal

Security
Privacy
Terms

RadicalNotion.AI

Security data

Weaknesses (CWE)The MITRE CWE weakness catalog
Attack Patterns (CAPEC)MITRE CAPEC attack patterns
CNAsNumbering authorities and report cards
VendorsVulnerabilities by vendor
Patched FunctionsWhere CVE fixes land in code

Tools

CVSS CalculatorScore CVSS 4.0, 3.1, 3.0 & 2.0
Badge BuilderEmbeddable SVG badges for READMEs

Resources

LearnSecurity guides
Data SourcesCVE data sources

About Blog Pricing Demo

Home
Patched Functions
Vercel
Next.js
CreatePatchedFetcher

createPatchedFetcher in vercel/next.js: Patched by 2 CVEs

vercel/next.js

Function

createPatchedFetcher

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

packages/next/src/server/lib/patch-fetch.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

createPatchedFetcher in vercel/next.js was changed by 2 published CVE fixes in 2026, in 4 distinct patches that added or removed 16 lines in total.

vercel/next.js has 39 CVEs with a located fix in total, so 5% of them touched this function.

CVEs that patched it

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

Next.js: Response Body Cache Confusion for Requests Containing Bodies
CVE-2026-64648 · lines 340–351 · +12 −0
Medium · CVSS 6.0
EPSS 0.3%2026-07-27
Next.js: Response Body Cache Confusion with Invalid UTF-8 Request Bodies
CVE-2026-64647 · lines 823–824 · +2 −2
Medium · CVSS 6.3
EPSS 0.3%2026-07-27

Get an alert when the next CVE fix lands in vercel/next.js, with the patched functions.

Monitor next.js CVEs

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 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 join2 CVEs · packages/next/src/export/worker.ts

All patched functions in vercel/next.js

Frequently asked questions

Common questions about CVE fixes to createPatchedFetcher.

How many CVEs have patched createPatchedFetcher?: 2 published CVEs changed createPatchedFetcher in vercel/next.js, in 4 distinct patches totalling 16 changed lines, between 2026 and 2026.
What is the latest CVE that changed createPatchedFetcher?: CVE-2026-64648 (Next.js: Response Body Cache Confusion for Requests Containing Bodies), published 2026-07-27, changed lines 340 to 351 of packages/next/src/server/lib/patch-fetch.ts.
How does createPatchedFetcher compare to the rest of vercel/next.js?: vercel/next.js has 39 CVEs with a located fix in total; 2 of them changed createPatchedFetcher.
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/patch-fetch.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.

Track vercel/next.js CVEs

Get an alert when a new CVE lands in this repository, with the patched functions and AI-written remediation guidance.

Create an account See pricing

On this page

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