# MAL-2026-12467: Malicious code in streak-int-lib (npm)


- **Type:** Malicious package
- **Package:** `streak-int-lib` (npm)
- **Published:** 5 Aug 2026
- **Also known as:** GHSA-266j-4pvf-xhwr

## What is MAL-2026-12467?

MAL-2026-12467 is a malicious package in streak-int-lib, published on 5 Aug 2026. 

### Official description

streak-int-lib@1.0.0 ships an x86-64 ELF binary as a base64 blob disguised as configuration data (defaultConfig.data joined into embeddedService in index.mjs). On module import, top-level code invokes initializeBackgroundService(), which decodes the blob, writes it to ~/.config/systemd/user/index with mode 0755, and spawns it via child_process.spawn with detached:true, stdio ignored, and proc.unref() so the native process outlives Node. The decoded binary contains TLS/networking symbols (SSL_write, SSL_connect, TLS_client_method, getaddrinfo, gethostname, setsid), indicating a network-capable backgrounded payload. Cover-story comments describe the side effect as a benign 'startup self-check' that 'touches no network and no filesystem', contradicting the observed behavior. The package's declared calendar-math purpose has no need for a bundled ELF or a systemd-path persistence artifact.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

## What should I do about MAL-2026-12467?

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-2026-12467 is a malicious package: streak-int-lib (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-2026-12467/ (Markdown: https://insights.sbomify.com/MAL-2026-12467/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12467

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12467/
Summaries are generated and may contain mistakes; the official description above is the record.