bigops-activity-headers-interceptor (npm) · Malicious Code
Affects bigops-activity-headers-interceptorSource GCVE Database
Malicious package : remove bigops-activity-headers-interceptor and rotate any secrets on hosts that installed it.
Data as of 6 Aug 2026, 19:37 UTC
Malicious package
Published to npm · OSV MAL-2026-12830
What to do
Remove bigops-activity-headers-interceptor 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 |
|---|---|---|
| npmbigops-activity-headers-interceptor | Affected
| Fixed in– |
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Description
The npm package bigops-activity-headers-interceptor version 35.6.8 contains malicious code that downloads and executes a platform-specific binary from obfuscated Cloudflare Workers domains. This binary is saved under decoy names in temporary directories and executed detached from the main process. The malware enforces a roughly 6-hour execution interval and respects certain environment variables to disable telemetry. The package's behavior is unrelated to its stated purpose and indicates a full system compromise risk.