cnb-cnb-core (npm) · Malicious Code
Affects cnb-cnb-coreSource GCVE Database
Malicious package : remove cnb-cnb-core and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 16:18 UTC
Malicious package
Published to npm · OSV MAL-2026-12650
What to do
Remove cnb-cnb-core 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 |
|---|---|---|
| npmcnb-cnb-core | Affected
| Fixed in– |
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Description
The npm package 'cnb-cnb-core' version 35.2.7 contains malicious code that downloads and executes a platform-specific executable from obfuscated remote hosts. The malicious loader uses obfuscation techniques to evade detection, including runtime construction of hostnames and fallback to a DNS-TXT covert channel for payload delivery. It disguises its activity as diagnostic telemetry and analytics, but executes attacker-supplied code without any integrity verification.