zw_nobdr_day (RubyGems) · Malicious Code
Affects zw_nobdr_daySource GCVE Database
Malicious package : remove zw_nobdr_day and rotate any secrets on hosts that installed it.
Data as of 26 Oct 2026, 16:06 UTC
Malicious package
Published to RubyGems · OSV MAL-2026-9821
What to do
Remove zw_nobdr_day 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 |
|---|---|---|
RubyGemszw_nobdr_daypkg:gem/zw_nobdr_dayOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: ghsa-malware (8b72d223d6194d2c8ef04e5db9434649c91dfad0c8e6925fb0470f3d7cc3c991) --- Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9fbb5fba02ba2f02395d3d2d43c31b2c482b7a9d/osv/malicious/rubygems/zw_nobdr_day/MAL-2026-9821.json))