MAL-2025-46961 Malicious code in prose_diff (RubyGems)
Malicious package
Published
MAL-2025-46961 is a malicious package: prose_diff (RubyGems). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2025-46961/ (Markdown: https://insights.sbomify.com/MAL-2025-46961/index.md)
- Package
- prose_diff
- Registry
- RubyGems
What is MAL-2025-46961?
MAL-2025-46961 is a malicious package in prose_diff, published on 1 Sep 2025.
Official description
The OpenSSF Package Analysis project identified 'prose_diff' @ 99.99.99 (rubygems) as malicious.
It is considered malicious because:
- The package executes one or more commands associated with malicious behavior.
What should I do about MAL-2025-46961?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.
Sources
Also known as GHSA-h3jf-hj3v-rh4w.