critter (RubyGems) · Malicious Code
Affects critterSource GCVE Database
Malicious package : remove critter and rotate any secrets on hosts that installed it.
Data as of 19 Jul 2026, 00:35 UTC
Malicious package
Published to RubyGems · OSV MAL-2025-192905
What to do
Remove critter 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 |
|---|---|---|
RubyGemscritterpkg:gem/critterOther threats | Affected
| Fixed in– |
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Description
The RubyGems package 'critter' version 90002.0 is identified as containing malicious code. This is a case of a malicious package rather than a traditional vulnerability. There is no CVSS score or detailed technical exploit information available. No known exploits in the wild have been reported. No patch or remediation guidance is provided.