How many CVEs have patched imageOptimizer?

2 published CVEs changed imageOptimizer in vercel/next.js, in 4 distinct patches totalling 853 changed lines, between 2022 and 2026.

What is the latest CVE that changed imageOptimizer?

CVE-2026-64644 (Next.js: Denial of Service in the Image Optimization API using SVGs), published 2026-07-27, changed lines 1039 to 1066 of packages/next/src/server/image-optimizer.ts.

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

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

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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Patched Functions
Vercel
Next.js
ImageOptimizer

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

vercel/next.js

Function

3 files

imageOptimizer

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

Defined in 3 files

Last patched July 27, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

853

Lines changed

Added plus removed

2022–2026

Years

By CVE publication date

Overview

imageOptimizer in vercel/next.js was changed by 2 published CVE fixes between 2022 and 2026, in 4 distinct patches that added or removed 853 lines in total.

The name occurs in 3 files: packages/next/src/server/image-optimizer.ts, packages/next/server/next-server.ts, packages/next/server/image-optimizer.ts.

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 imageOptimizer, newest first, with the lines each fix touched.

Next.js: Denial of Service in the Image Optimization API using SVGs
CVE-2026-64644 · packages/next/src/server/image-optimizer.ts · lines 1039–1066 · +1 −7 in 2 hunks
Medium · CVSS 6.3
EPSS 0.7%2026-07-27
Improper CSP in Image Optimization API for Next.js versions between 10.0.0 and 12.1.0
CVE-2022-23646 · packages/next/server/image-optimizer.ts · lines 49–547 · +425 −409
High · CVSS 7.5
EPSS 1.8%2022-02-17
Improper CSP in Image Optimization API for Next.js versions between 10.0.0 and 12.1.0
CVE-2022-23646 · packages/next/server/next-server.ts · lines 577–592 · +4 −7
High · CVSS 7.5
EPSS 1.8%2022-02-17

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Other functions in these files

Functions in the same files that CVE fixes also changed.

1setResponseHeaderspackages/next/server/image-optimizer.ts2 CVEs · 2 patches2021 to 2022
2fetchInternalImagepackages/next/src/server/image-optimizer.ts2 CVEs · 2 patches2025
3metadatapackages/next/src/server/image-optimizer.ts1 CVEs · 2 patches2026
4detectContentTypepackages/next/src/server/image-optimizer.ts1 CVEs · 2 patches2026
5initCacheEntriespackages/next/src/server/image-optimizer.ts1 CVEs · 1 patches2026
6readFromCacheDirpackages/next/src/server/image-optimizer.ts1 CVEs · 1 patches2026
7upstreamTimedOutpackages/next/src/server/image-optimizer.ts1 CVEs · 1 patches2026
8getHashpackages/next/server/image-optimizer.ts1 CVEs · 1 patches2022

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 imageOptimizer.

How many CVEs have patched imageOptimizer?: 2 published CVEs changed imageOptimizer in vercel/next.js, in 4 distinct patches totalling 853 changed lines, between 2022 and 2026.
What is the latest CVE that changed imageOptimizer?: CVE-2026-64644 (Next.js: Denial of Service in the Image Optimization API using SVGs), published 2026-07-27, changed lines 1039 to 1066 of packages/next/src/server/image-optimizer.ts.
How does imageOptimizer compare to the rest of vercel/next.js?: vercel/next.js has 39 CVEs with a located fix in total; 2 of them changed imageOptimizer.
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/image-optimizer.ts on GitHub (opens in a new tab)
packages/next/server/next-server.ts on GitHub (opens in a new tab)
packages/next/server/image-optimizer.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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On this page

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