claims-auth-domain (npm) · Malicious Code
Affects claims-auth-domainSource GCVE Database
Malicious package : remove claims-auth-domain and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 16:07 UTC
Malicious package
Published to npm · OSV MAL-2026-12608
What to do
Remove claims-auth-domain 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-auth-domain | Affected
| Fixed in– |
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Description
The npm package 'claims-auth-domain' version 35.5.4 contains malicious code that executes at import time. It loads a script that downloads a binary payload from attacker-controlled infrastructure, stages it on the host with a disguised filename, sets executable permissions, and runs it detached. The payload delivery uses obfuscated domain names and falls back to reconstructing the binary from DNS TXT records if HTTPS delivery fails. The code masquerades as telemetry and respects certain environment variables to evade detection. This results in full host code execution under attacker control upon loading the package.