bigops-rx-post-message (npm) · Malicious Code
Affects bigops-rx-post-messageSource GCVE Database
Malicious package : remove bigops-rx-post-message and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 22:18 UTC
Malicious package
Published to npm · OSV MAL-2026-13248
What to do
Remove bigops-rx-post-message 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-rx-post-message | Affected
| Fixed in– |
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Description
The npm package bigops-rx-post-message version 35.1.5 contains malicious code that downloads and executes an attacker-controlled binary during installation or require(). This binary is fetched from non-publisher infrastructure using obfuscated runtime-generated URLs and is executed without any integrity verification. The malicious executable is saved with disguised filenames in temporary directories and launched detached from the main process, enabling remote code execution on the host system.