prose_diff (RubyGems) · Malicious Code
Affects prose_diffSource GCVE Database
Malicious package : remove prose_diff and rotate any secrets on hosts that installed it.
Data as of 18 Jul 2026, 22:30 UTC
Malicious package
Published to RubyGems · OSV MAL-2025-46961
What to do
Remove prose_diff from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| RubyGemsprose_diff | Affected
| Fixed in– |
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Description
The RubyGems package 'prose_diff' version 99.99.99 has been identified as malicious by the OpenSSF Package Analysis project. This package executes one or more commands associated with malicious behavior. No official patch or remediation guidance is currently provided. There are no known exploits in the wild at this time. The package should be treated as a security risk due to its malicious nature.