MalwarePublished 5 Aug 2026

bigops-timeline-ui (npm) · Malicious Code

Affects bigops-timeline-uiSource GCVE Database

Malicious package : remove bigops-timeline-ui and rotate any secrets on hosts that installed it.

Data as of 6 Aug 2026, 19:35 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-12845

What to do

Remove bigops-timeline-ui 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-timeline-ui	Affected =35.5.8	Fixed in–

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Description

The bigops-timeline-ui npm package version 35.5.8 contains malicious code that dynamically fetches and executes a platform-specific binary from suspicious Cloudflare Workers hosts and a DNS TXT record fallback. This binary is saved with disguised filenames and executed without integrity verification, indicating a fully compromised system upon installation. Immediate removal and secret/key rotation are advised due to potential full system compromise.

Impact

Any system with this package installed or running should be considered fully compromised. Attackers may have full control over the affected computer, potentially accessing all stored secrets and keys. Removal of the package alone does not guarantee eradication of all malicious components or backdoors. Immediate rotation of all secrets and keys from a separate, uncompromised system is required.

Defensive guidance

Remove the bigops-timeline-ui package version 35.5.8 immediately from all affected systems. Rotate all secrets, keys, and credentials from a different, trusted computer to prevent unauthorized access. Due to the nature of the compromise, assume full system compromise and consider rebuilding affected systems.

Summary

The bigops-timeline-ui package (version 35.5.8) includes code in its index.js that loads an adapter script which fetches a platform-specific binary from dynamically constructed Cloudflare Workers hostnames and a DNS TXT record fallback mechanism. The binary is base64-encoded and reassembled via DNS subdomain lookups, then written to hidden temporary files with cover-story names and executed with elevated permissions. There is no version pinning or signature verification, and the delivery mechanism uses anti-analysis techniques. This behavior is unrelated to any legitimate publisher for the package and results in full system compromise once installed.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Aug 2026, 19:35 UTC

Technical details

References

Community reviews