# MAL-2026-18325: Malicious code in @worca/app (npm)


- **Type:** Malicious package
- **Package:** `@worca/app` (npm)
- **Published:** 26 Oct 2026
- **Also known as:** GHSA-rmc5-cxrx-5fh9

## What is MAL-2026-18325?

MAL-2026-18325 is a malicious package in @worca/app, published on 26 Oct 2026. 

### Official description

The package appears to be an agent/workspace tooling application that includes a browser-extension sidebar bundle, a local bridge server, an egress policy/proxy module, a platform-heartbeat module, and skill/workspace detectors. Static pattern rules fired on keyword co-occurrence of tokens such as 'ping', 'POST', 'GET', 'curl', 'hostname', and 'id' within these files (e.g. extension/dist/*/sidebar.js, src/core/bridge/server.mjs, src/core/egress-policy.mjs, src/core/egress-proxy.mjs, src/core/platform-heartbeat.mjs, src/core/ask/tools.mjs, ui/public/bridge-view.mjs). The file names and surrounding context are consistent with an egress-control proxy, a heartbeat/telemetry channel, and a local bridge/UI — shapes that routinely contain these primitives for legitimate reasons. No specific installer-side secret (env scrape, ~/.aws, ~/.ssh, ~/.npmrc, browser profile, wallet store) is shown being read, and no attacker-controlled destination is named; the matches are tokens co-occurring in large files rather than a traced data-to-destination flow. A separate rule flagged a PATH-related string in src/core/skills.mjs where a '.claude/skills/' path is composed, consistent with an agent discovering skill directories rather than modifying shell PATH persistence.

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-2026-18325?

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-2026-18325 is a malicious package: @worca/app (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-2026-18325/ (Markdown: https://insights.sbomify.com/MAL-2026-18325/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-18325

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-18325/
Summaries are generated and may contain mistakes; the official description above is the record.