# MAL-2026-5565: Malicious code in ai-sdk-helpers (npm)


- **Type:** Malicious package
- **Package:** `ai-sdk-helpers` (npm)
- **Published:** 11 Jun 2026
- **Also known as:** GHSA-w43g-ccrm-v8xv

## What is MAL-2026-5565?

MAL-2026-5565 is a malicious package in ai-sdk-helpers, published on 11 Jun 2026. 

### Official description

ai-sdk-helpers@1.2.1 is a typosquat impersonating the Vercel AI SDK ecosystem (homepage ai-sdk.guide, author 'AI SDK Guide <hello@ai-sdk.guide>'). On npm install, scripts/postinstall.js reads installer-owned identity files it did not create — ~/.gitconfig, ~/.config/git/config,./.git/config (for the developer's git email) and ~/.config/gh/hosts.yml (for the GitHub CLI login and email) — and collects os.hostname(), os.userInfo().username, process.cwd(), and CI environment variables. The collected data is POSTed in plaintext JSON to https://npm-package-logger-228835561205.europe-west1.run.app/ (scripts/postinstall.js line 147 / line 163). Comments in the script claim the data is 'anonymous' and 'one-way hashed', but the traced payload ships the raw scmEmail, githubLogin, githubEmail, hostname, username, and cwd fields. The tarball additionally ships scripts/publish-versions.sh, whose comment 'This creates the appearance of an active, maintained package' documents a republish loop of 21 fake versions to manufacture apparent activity. The combination of typosquat naming against Vercel's AI SDK, install-time harvest of developer→employer identity from installer-managed git/GitHub config, exfiltration to a third-party Cloudflare Run endpoint, and the shipped version-spam script establishes a coordinated install-time identity-exfiltration campaign targeting AI/LLM developers.

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-2026-5565?

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-2026-5565 is a malicious package: ai-sdk-helpers (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-2026-5565/ (Markdown: https://insights.sbomify.com/MAL-2026-5565/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-5565

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-5565/
Summaries are generated and may contain mistakes; the official description above is the record.