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Update dependency webpack-dev-middleware to v5 [SECURITY] - #193

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Update dependency webpack-dev-middleware to v5 [SECURITY]#193
renovate[bot] wants to merge 1 commit into
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renovate/npm-webpack-dev-middleware-vulnerability

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@renovate renovate Bot commented Mar 22, 2024

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This PR contains the following updates:

Package Change Age Confidence
webpack-dev-middleware 3.7.25.3.4 age confidence

Path traversal in webpack-dev-middleware

CVE-2024-29180 / GHSA-wr3j-pwj9-hqq6

More information

Details

Summary

The webpack-dev-middleware middleware does not validate the supplied URL address sufficiently before returning the local file. It is possible to access any file on the developer's machine.

Details

The middleware can either work with the physical filesystem when reading the files or it can use a virtualized in-memory memfs filesystem.
If writeToDisk configuration option is set to true, the physical filesystem is used:
https://github.com/webpack/webpack-dev-middleware/blob/7ed24e0b9f53ad1562343f9f517f0f0ad2a70377/src/utils/setupOutputFileSystem.js#L21

The getFilenameFromUrl method is used to parse URL and build the local file path.
The public path prefix is stripped from the URL, and the unsecaped path suffix is appended to the outputPath:
https://github.com/webpack/webpack-dev-middleware/blob/7ed24e0b9f53ad1562343f9f517f0f0ad2a70377/src/utils/getFilenameFromUrl.js#L82
As the URL is not unescaped and normalized automatically before calling the midlleware, it is possible to use %2e and %2f sequences to perform path traversal attack.

PoC

A blank project can be created containing the following configuration file webpack.config.js:
module.exports = { devServer: { devMiddleware: { writeToDisk: true } } };

When started, it is possible to access any local file, e.g. /etc/passwd:
$ curl localhost:8080/public/..%2f..%2f..%2f..%2f../etc/passwd

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
Impact

The developers using webpack-dev-server or webpack-dev-middleware are affected by the issue. When the project is started, an attacker might access any file on the developer's machine and exfiltrate the content (e.g. password, configuration files, private source code, ...).

If the development server is listening on a public IP address (or 0.0.0.0), an attacker on the local network can access the local files without any interaction from the victim (direct connection to the port).

If the server allows access from third-party domains (CORS, Allow-Access-Origin: * ), an attacker can send a malicious link to the victim. When visited, the client side script can connect to the local server and exfiltrate the local files.

Recommendation

The URL should be unescaped and normalized before any further processing.

Severity

  • CVSS Score: 7.4 / 10 (High)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


Release Notes

webpack/webpack-dev-middleware (webpack-dev-middleware)

v5.3.4

Compare Source

5.3.4 (2024-03-20)
Bug Fixes

v5.3.3

Compare Source

⚠ BREAKING CHANGES
  • minimum supported webpack version is 5.0.0
  • minimum supported Nodejs version is 14.15.0
5.3.3 (2022-05-18)
Bug Fixes
5.3.2 (2022-05-17)
Bug Fixes
5.3.1 (2022-02-01)
Bug Fixes

v5.3.2

Compare Source

⚠ BREAKING CHANGES
  • minimum supported webpack version is 5.0.0
  • minimum supported Nodejs version is 14.15.0
5.3.3 (2022-05-18)
Bug Fixes
5.3.2 (2022-05-17)
Bug Fixes
5.3.1 (2022-02-01)
Bug Fixes

v5.3.1

Compare Source

⚠ BREAKING CHANGES
  • minimum supported webpack version is 5.0.0
  • minimum supported Nodejs version is 14.15.0
5.3.3 (2022-05-18)
Bug Fixes
5.3.2 (2022-05-17)
Bug Fixes
5.3.1 (2022-02-01)
Bug Fixes

v5.3.0

Compare Source

⚠ BREAKING CHANGES
  • minimum supported webpack version is 5.0.0
  • minimum supported Nodejs version is 14.15.0
5.3.3 (2022-05-18)
Bug Fixes
5.3.2 (2022-05-17)
Bug Fixes
5.3.1 (2022-02-01)
Bug Fixes

v5.2.2

Compare Source

Features
5.2.2 (2021-11-17)
Chore
  • update schema-utils package to 4.0.0 version
5.2.1 (2021-09-25)
  • internal release, no visible changes and features

v5.2.1

Compare Source

Features
5.2.2 (2021-11-17)
Chore
  • update schema-utils package to 4.0.0 version
5.2.1 (2021-09-25)
  • internal release, no visible changes and features

v5.2.0

Compare Source

Features
5.2.2 (2021-11-17)
Chore
  • update schema-utils package to 4.0.0 version
5.2.1 (2021-09-25)
  • internal release, no visible changes and features

v5.1.0

Compare Source

Features
  • don't read full file if Range header is present (e8b21f0)
  • output more information on errors (#​1024) (7df9e44)
Bug Fixes

v5.0.0

Compare Source

⚠ BREAKING CHANGES

v4.3.0

Compare Source

Features
Bug Fixes

v4.2.0

Compare Source

Features

v4.1.0

Compare Source

Features
4.0.4 (2021-01-13)
Bug Fixes
4.0.3 (2021-01-12)
Bug Fixes
  • output stats to stdout instead stderr, how does webpack-cli, if you need hide stats from output please use { stats: false } or { stats: 'none' } (4de0f97)
  • colors are working for stats (4de0f97)
  • schema description (#​783) (f9ce2b2)
  • skip Content-type header on unknown types (#​809) (5c9eee5)
4.0.2 (2020-11-10)
Bug Fixes
4.0.1 (2020-11-09)
Bug Fixes
  • compatibility with connect (b83a1db)

v4.0.4

Compare Source

Features
4.0.4 (2021-01-13)
Bug Fixes
4.0.3 (2021-01-12)
Bug Fixes
  • output stats to stdout instead stderr, how does webpack-cli, if you need hide stats from output please use { stats: false } or { stats: 'none' } (4de0f97)
  • colors are working for stats (4de0f97)
  • schema description (#​783) (f9ce2b2)
  • skip Content-type header on unknown types (#​809) (5c9eee5)
4.0.2 (2020-11-10)
Bug Fixes
4.0.1 (2020-11-09)
Bug Fixes
  • compatibility with connect (b83a1db)

v4.0.3

Compare Source

Features
4.0.4 (2021-01-13)
Bug Fixes
4.0.3 (2021-01-12)
Bug Fixes
  • output stats to stdout instead stderr, how does webpack-cli, if you need hide stats from output please use { stats: false } or { stats: 'none' } (4de0f97)
  • colors are working for stats (4de0f97)
  • schema description (#​783) (f9ce2b2)
  • skip Content-type header on unknown types (#​809) (5c9eee5)
4.0.2 (2020-11-10)
Bug Fixes
4.0.1 (2020-11-09)
Bug Fixes
  • compatibility with connect (b83a1db)

v4.0.2

Compare Source

Features
4.0.4 (2021-01-13)
Bug Fixes
4.0.3 (2021-01-12)
Bug Fixes
  • output stats to stdout instead stderr, how does webpack-cli, if you need hide stats from output please use { stats: false } or { stats: 'none' } (4de0f97)
  • colors are working for stats (4de0f97)
  • schema description (#​783) (f9ce2b2)
  • skip Content-type header on unknown types (#​809) (5c9eee5)
4.0.2 (2020-11-10)
Bug Fixes
4.0.1 (2020-11-09)
Bug Fixes
  • compatibility with connect (b83a1db)

v4.0.1

Compare Source

Features
4.0.4 (2021-01-13)
Bug Fixes
4.0.3 (2021-01-12)
Bug Fixes
  • output stats to stdout instead stderr, how does webpack-cli, if you need hide stats from output please use { stats: false } or { stats: 'none' } (4de0f97)
  • colors are working for stats (4de0f97)
  • schema description (#​783) (f9ce2b2)
  • skip Content-type header on unknown types (#​809) (5c9eee5)
4.0.2 (2020-11-10)
Bug Fixes
4.0.1 (2020-11-09)
Bug Fixes
  • compatibility with connect (b83a1db)

v4.0.0

Compare Source

Features
4.0.4 (2021-01-13)
Bug Fixes
4.0.3 (2021-01-12)
Bug Fixes
  • output stats to stdout instead stderr, how does webpack-cli, if you need hide stats from output please use { stats: false } or { stats: 'none' } (4de0f97)
  • colors are working for stats (4de0f97)
  • schema description (#​783) (f9ce2b2)
  • skip Content-type header on unknown types (#​809) (5c9eee5)
4.0.2 (2020-11-10)
Bug Fixes
4.0.1 (2020-11-09)
Bug Fixes
  • compatibility with connect (b83a1db)

v3.7.3

Compare Source

3.7.3 (2020-12-15)
Bug Fixes

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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate Bot changed the title Update dependency webpack-dev-middleware to v5 [SECURITY] Update dependency webpack-dev-middleware to v5 [SECURITY] - autoclosed Mar 27, 2026
@renovate renovate Bot closed this Mar 27, 2026
@renovate
renovate Bot deleted the renovate/npm-webpack-dev-middleware-vulnerability branch March 27, 2026 02:42
@renovate renovate Bot changed the title Update dependency webpack-dev-middleware to v5 [SECURITY] - autoclosed Update dependency webpack-dev-middleware to v5 [SECURITY] Mar 30, 2026
@renovate renovate Bot reopened this Mar 30, 2026
@renovate
renovate Bot force-pushed the renovate/npm-webpack-dev-middleware-vulnerability branch 2 times, most recently from 60b531d to 20a86f2 Compare March 30, 2026 19:04
@renovate renovate Bot changed the title Update dependency webpack-dev-middleware to v5 [SECURITY] Update dependency webpack-dev-middleware to v5 [SECURITY] - autoclosed Apr 27, 2026
@renovate renovate Bot closed this Apr 27, 2026
@renovate renovate Bot changed the title Update dependency webpack-dev-middleware to v5 [SECURITY] - autoclosed Update dependency webpack-dev-middleware to v5 [SECURITY] Apr 27, 2026
@renovate renovate Bot reopened this Apr 27, 2026
@renovate
renovate Bot force-pushed the renovate/npm-webpack-dev-middleware-vulnerability branch 2 times, most recently from 20a86f2 to d0b2e70 Compare April 27, 2026 20:35
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