claims-types (npm) · Malicious Code
Affects claims-typesSource GCVE Database
Malicious package : remove claims-types and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 16:19 UTC
Malicious package
Published to npm · OSV MAL-2026-12645
What to do
Remove claims-types 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 |
|---|---|---|
| npmclaims-types | Affected
| Fixed in– |
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Description
The npm package 'claims-types' version 35.8.3 contains malicious code that downloads and executes binaries from Cloudflare Workers hosts or via a DNS TXT record covert channel. The malicious payload is saved under disguised filenames in temporary directories, made executable, and spawned detached from the main process. This behavior is designed to evade static detection by assembling hostnames and API calls dynamically and using cover stories like 'analytics' and 'telemetry'. A secondary dropper module with similar behavior is present but not actively used in this version.