# MAL-2026-15536: Malicious code in ir-annuities-client-authentication-module (npm)


- **Type:** Malicious package
- **Package:** `ir-annuities-client-authentication-module` (npm)
- **Published:** 28 Aug 2026
- **Also known as:** GHSA-4hpj-q7v8-mjf7

## What is MAL-2026-15536?

MAL-2026-15536 is a malicious package in ir-annuities-client-authentication-module, published on 28 Aug 2026. 

### Official description

package.json declares a dependency whose key equals the package's own name (`ir-annuities-client-authentication-module`) and whose value is a plain HTTPS URL to a non-registry host (`https://repo.securityctrl.com/ir-annuities-client-authentication-module`) instead of a semver range. On `npm install`, npm fetches whatever bytes that URL currently returns and installs them as this dependency, with no version pin, no integrity hash, and no registry provenance; any lifecycle scripts contained in the fetched artifact execute on the installer. The dependency key matching the package's own name creates a dependency-confusion shape that can win resolution against an internal package of the same name. The shipped index.js is an inert stub, so the manifest itself is the delivery mechanism — the absence of local scripts does not prevent the fetch or its lifecycle execution.

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-2026-15536?

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-2026-15536 is a malicious package: ir-annuities-client-authentication-module (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-2026-15536/ (Markdown: https://insights.sbomify.com/MAL-2026-15536/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-15536

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-15536/
Summaries are generated and may contain mistakes; the official description above is the record.