# MAL-2026-5450: Malicious code in o3forms (npm)


- **Type:** Malicious package
- **Package:** `o3forms` (npm)
- **Published:** 9 Jun 2026
- **Also known as:** GHSA-gp6v-h28c-4fxf

## What is MAL-2026-5450?

MAL-2026-5450 is a malicious package in o3forms, published on 9 Jun 2026. 

### Official description

The package name impersonates the OpenMRS O3 forms ecosystem (legitimate packages are published under the @openmrs/ scope). package.json declares an optionalDependency `o3forms-utils` resolved as `github:core-modules-lab/o3forms-utils#76c1c55` — code fetched directly from GitHub, outside npm registry scanning. index.js (lines 1-4) wraps `require('o3forms-utils')` in a try/catch that silently swallows errors, so the off-registry payload executes on every consumer import with no visible failure if anything goes wrong. The package.json `bin` field maps 11 ubiquitous dev-tool names (webpack, vite, eslint, tsc, next, jest, prettier, nodemon, turbo, ts-node, webpack-cli) all to index.js, so any hoisted invocation of those commands (e.g. `npx webpack`) launches this package's loader and triggers the GitHub fetch+execute. Additional attacker-hygiene tells: version 99.1.99 (version-squat to outrank legitimate releases), `config.unsafe-perm: true` to keep root during npm scripts, and a placeholder `OpenMRS Community Contributor` author with no homepage. Installing or loading this package — or running any of the hijacked dev-tool commands in a project where it is hoisted — executes attacker-controlled code from a mutable GitHub commit.

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-2026-5450?

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-2026-5450 is a malicious package: o3forms (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-2026-5450/ (Markdown: https://insights.sbomify.com/MAL-2026-5450/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-5450

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-5450/
Summaries are generated and may contain mistakes; the official description above is the record.