prose_diff

GHSA-h3jf-hj3v-rh4w

Malicious code in prose_diff (RubyGems)

Details

**Severity:** Critical

**Affected versions:** `= 99.99.99`

## Source: ossf-package-analysis (1b4d01c12dfc0e3356a6e2613833c8afd50caee6c1cd2882fe4be1b84e182fdf)
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.

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/prose_diff/MAL-2025-46961.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/prose_diff/MAL-2025-46961.json
- https://github.com/advisories/GHSA-h3jf-hj3v-rh4w

Compromised versions (1)

= 99.99.99

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.