🚨 [security] Update multer 1.4.5-lts.1 → 2.0.0 (major)

[depfu]

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🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

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Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ multer (1.4.5-lts.1 → 2.0.0) · Repo · Changelog

Security Advisories 🚨

🚨 Multer vulnerable to Denial of Service via memory leaks from unclosed streams

Impact

Multer <2.0.0 is vulnerable to a resource exhaustion and memory leak issue due to improper stream handling. When the HTTP request stream emits an error, the internal busboy stream is not closed, violating Node.js stream safety guidance.

This leads to unclosed streams accumulating over time, consuming memory and file descriptors. Under sustained or repeated failure conditions, this can result in denial of service, requiring manual server restarts to recover. All users of Multer handling file uploads are potentially impacted.

Patches

Users should upgrade to 2.0.0

Workarounds

None

References

• #1120
• 2c8505f

🚨 Multer vulnerable to Denial of Service from maliciously crafted requests

Impact

A vulnerability in Multer versions >=1.4.4-lts.1 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process.

Patches

Users should upgrade to 2.0.0

Workarounds

None

References

• #1176
• 2c8505f

Commits

See the full diff on Github. The new version differs by 12 commits:

• 🐛 drain stream. fixes regression in node 18, remove old CI, set minimum node version, fix readme badges, add .npmrc
• ci: add ci pipeline to `lts` branch (#1302)
• version: 1.4.5-lts.2
• history: 1.4.5-lts.2
• test: add test for out-of-band error event
• Merge pull request #1177 from max-mathieu/fix/unhandled-busboy-error
• Fix out-of-band error event from busboy
• version: 1.4.5-lts.1
• history: 1.4.5-lts.1
• version: 1.4.4-lts.1
• history: 1.4.4-lts.1
• fix(cve): bump busboy to fix CVE-2022-24434

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Summary by Sourcery

Upgrade multer from 1.4.5-lts.1 to 2.0.0 to address critical security vulnerabilities.

Bug Fixes:

• Fix memory leaks from unclosed streams on request errors.
• Prevent process crashes from malformed multipart upload requests causing denial of service.

Chores:

• Bump multer dependency to version 2.0.0 in package.json

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[sourcery-ai]

Reviewer's Guide

This PR upgrades the multer package from 1.4.5-lts.1 to 2.0.0 to remediate two Denial of Service vulnerabilities by updating the dependency in package.json and regenerating the lockfile.

File-Level Changes

Change	Details	Files
Upgrade multer to 2.0.0 for security fixes	Bumped multer version in package.json Regenerated package-lock.json to reflect new dependency tree	package.json package-lock.json

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