lambethtestdef (RubyGems) · Malicious Code
Affects lambethtestdefSource GCVE Database
Malicious package : remove lambethtestdef and rotate any secrets on hosts that installed it.
Data as of 26 Oct 2026, 16:07 UTC
Malicious package
Published to RubyGems · OSV MAL-2026-7797
What to do
Remove lambethtestdef 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 |
|---|---|---|
RubyGemslambethtestdefpkg:gem/lambethtestdefOther threats | Affected
| Fixed in– |
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Description
The RubyGem package 'lambethtestdef' version 0.0.54890 contains malicious code. This package is identified as a malicious package by the OpenSSF and is listed in the malicious-packages database. No further technical details or exploitation methods are provided.