Security: vulnerable dependency image-size (CVE-2025-71329/71330) — maintained drop-in available

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
58/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
javascript, node.js
Domain
security

Research direction

Start at the package dependency declaration and the import path shown in the issue, then compare the direct-dependency and npm override options. Done means the vulnerable image-size dependency is replaced or overridden with image-size-next@2.1.0 and the package continues to use the documented public API.

Written by the indexing model from the issue text.

Description

Context

This package depends on npm image-size. Upstream is archived and the latest release (2.0.2) remains affected by:

  • CVE-2025-71329 — DoS via infinite loop (JXL/HEIF/JP2 zero-size boxes)
  • CVE-2025-71330 — DoS via infinite loop (ICNS zero entry length)

npm audit fix will not switch package names automatically.

Maintained drop-in

Community MIT fork with the same public API as image-size@2.0.2:

Not affiliated with the original image-size maintainer — honest community fork only.

Migration options

A — Direct dependency

npm install image-size-next
- import { imageSize } from 'image-size'
+ import { imageSize } from 'image-size-next'

B — Force transitive resolution (npm 8.3+)

{
  "overrides": {
    "image-size": "npm:image-size-next@2.1.0"
  }
}

Ask

Happy to open a PR for @alexpelan/appdmg if useful. Thanks for maintaining open source.

cc @LinusU

Dominant language
JavaScript
Stars
1.7k
Forks
158
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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