wcaldt (RubyGems) · Malicious Code
Affects wcaldtSource GCVE Database
Malicious package : remove wcaldt 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-2026-9321
What to do
Remove wcaldt 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 |
|---|---|---|
RubyGemswcaldtpkg:gem/wcaldtOther threats | Affected
| Fixed in– |
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Description
The wcaldt RubyGem version 0.0.1 is identified as containing malicious code. This package is flagged as a malicious package by the OpenSSF project and is listed in the malicious RubyGems database. No specific technical details about the malicious behavior or exploitation methods are provided. There is no known exploit in the wild reported for this package. No patch or remediation is currently documented.