# MAL-2026-17282: Malicious code in @hrmony/hyper-json-builder (npm)


- **Type:** Malicious package
- **Package:** `@hrmony/hyper-json-builder` (npm)
- **Published:** 29 Sep 2026
- **Also known as:** GHSA-r476-wfgx-8rc7

## What is MAL-2026-17282?

MAL-2026-17282 is a malicious package in @hrmony/hyper-json-builder, published on 29 Sep 2026. 

### Official description

On module load, index.js performs top-level fetch to a hardcoded attacker-controlled endpoint at https://hrnmn.dd.h4x.tv/save_instance_info_from_pkge_hrmony_hyper-json-builder and triggers two credential-harvest routines. The first enumerates all entries of process.env and recursively reads /var/run/secrets/ (Kubernetes service-account tokens and mounted secrets), then POSTs the combined payload to that endpoint. The second obtains an IMDSv2 token against 169.254.169.254, queries EC2 instance metadata paths including identity-credentials/ec2/security-credentials and iam/security-credentials/<role>, and POSTs the retrieved IAM role credentials to the same endpoint. The destination path embeds this package's own name, indicating targeted exfiltration keyed to installations of this package. The package.json also declares an unpinned dependency @hrmony/kit-5 ^1.0.0 under the same scope that is not imported by the shipped code.

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-2026-17282?

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-2026-17282 is a malicious package: @hrmony/hyper-json-builder (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-2026-17282/ (Markdown: https://insights.sbomify.com/MAL-2026-17282/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-17282

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-17282/
Summaries are generated and may contain mistakes; the official description above is the record.