How many CVEs have patched transformMiddleware?

4 published CVEs changed transformMiddleware in vitejs/vite, in 4 distinct patches totalling 16 changed lines, between 2025 and 2026.

What is the latest CVE that changed transformMiddleware?

CVE-2026-39364 (Vite has a `server.fs.deny` bypass with queries), published 2026-04-07, changed lines 325 to 331 of packages/vite/src/node/server/middlewares/transform.ts.

How does transformMiddleware compare to the rest of vitejs/vite?

vitejs/vite has 16 CVEs with a located fix in total; 4 of them changed transformMiddleware.

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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vitejs/vite

Function

transformMiddleware

Name: transformMiddleware in vitejs/vite: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

packages/vite/src/node/server/middlewares/transform.ts

Last patched April 7, 2026

4

CVEs

That changed this function

4

Distinct patches

Backports counted once

16

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

transformMiddleware in vitejs/vite was changed by 4 published CVE fixes between 2025 and 2026, in 4 distinct patches that added or removed 16 lines in total.

vitejs/vite has 16 CVEs with a located fix in total, so 25% of them touched this function.

CVEs that patched it

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

Vite has a `server.fs.deny` bypass with queries
CVE-2026-39364 · lines 325–331 · +7 −1
High · CVSS 8.2
EPSS 1.5%2026-04-07
Vite allows server.fs.deny to be bypassed with .svg or relative paths
CVE-2025-31486 · lines 325–328 · +4 −0
Medium · CVSS 5.3
EPSS 40.5%2025-04-03
Vite has a `server.fs.deny` bypassed for `inline` and `raw` with `?import` query
CISA KEV
CVE-2025-31125 · lines 182–183 · +2 −1
High · CVSS 8.7
EPSS 65.2%2025-03-31
Vite bypasses server.fs.deny when using `?raw??`
CVE-2025-30208 · line 47 · +1 −0
High · CVSS 7.5
EPSS 74.8%2025-03-24

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Other functions in these files

Functions in the same file that CVE fixes also changed.

Other hotspots in the repository

Functions in vitejs/vite changed by the most CVE fixes.

then8 CVEs · playground/fs-serve/root/src/index.html ensureServingAccess4 CVEs · packages/vite/src/node/server/middlewares/transform.ts serveStaticMiddleware3 CVEs · packages/vite/src/node/server/middlewares/static.ts picomatch2 CVEs · packages/vite/src/node/server/index.ts ensureServingAccess2 CVEs · packages/vite/src/node/server/middlewares/static.ts viteServeRawFsMiddleware2 CVEs · packages/vite/src/node/server/middlewares/static.ts

All patched functions in vitejs/vite

Frequently asked questions

Common questions about CVE fixes to transformMiddleware.

How many CVEs have patched transformMiddleware?: 4 published CVEs changed transformMiddleware in vitejs/vite, in 4 distinct patches totalling 16 changed lines, between 2025 and 2026.
What is the latest CVE that changed transformMiddleware?: CVE-2026-39364 (Vite has a `server.fs.deny` bypass with queries), published 2026-04-07, changed lines 325 to 331 of packages/vite/src/node/server/middlewares/transform.ts.
How does transformMiddleware compare to the rest of vitejs/vite?: vitejs/vite has 16 CVEs with a located fix in total; 4 of them changed transformMiddleware.
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

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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