MalwarePublished 5 Aug 2026

bigops-jsonpath-mapper (npm) · Malicious Code

Affects bigops-jsonpath-mapperSource GCVE Database

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

Data as of 5 Aug 2026, 22:47 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-13220

What to do

Remove bigops-jsonpath-mapper 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-jsonpath-mapper	Affected =35.4.6	Fixed in–

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Description

The bigops-jsonpath-mapper npm package version 35.4.6 contains malicious code that, upon module load, downloads and executes a platform-specific native binary from attacker-controlled infrastructure. The binary is saved under disguised filenames in temporary directories and executed detached from the parent process. This behavior is disguised as telemetry or session tracking but functions as a fetch-and-execute dropper, enabling arbitrary code execution on the host system.

Impact

This malicious behavior allows arbitrary code execution on the host system when the package is imported, potentially leading to full system compromise, data theft, or further malware deployment. The execution of attacker-controlled native binaries bypasses typical JavaScript sandboxing and can evade detection due to obfuscation and use of temporary disguised files.

Defensive guidance

Users should immediately remove and avoid using version 35.4.6 of bigops-jsonpath-mapper. Verify the integrity of dependencies and consider replacing this package with a trusted alternative. Monitor for suspicious activity related to this package and clean affected systems.

Summary

The bigops-jsonpath-mapper package (version 35.4.6) includes code in index.js that loads _bridge.js, which constructs obfuscated hostnames to fetch a native binary over HTTPS from attacker-controlled domains. The binary is saved to temporary directories with disguised names and appropriate execution permissions, then spawned detached and unreferenced via shell commands. A TTL file prevents repeated execution across imports. Despite comments suggesting telemetry functionality, the actual behavior is a fetch-and-execute dropper that runs opaque code from non-publisher infrastructure at module load time.

References

npmjs.com/package/bigops-jsonpath-mapper/v/35.4.6 (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Aug 2026, 22:47 UTC

Technical details

References

Community reviews