# MAL-2026-15880: Malicious code in element-guci-util (npm)


- **Type:** Malicious package
- **Package:** `element-guci-util` (npm)
- **Published:** 3 Sep 2026
- **Also known as:** GHSA-rv3j-whh5-7gwg

## What is MAL-2026-15880?

MAL-2026-15880 is a malicious package in element-guci-util, published on 3 Sep 2026. 

### Official description

Package is published as an element-ui utility library (`element-guci-util`, description '元素-ui 常用工具函数集合') but its main entrypoint contains no utility functions. On `require()`/`import`, top-level code invokes `iconFont()` which checks the current date and, on or after 2026-10-01, invokes `iconDont()`. `iconDont` fabricates a synthetic `.exe` Blob and triggers an anchor click to force a download on the end user, opens `https://admin.nikolive.cn/` in a new window, calls `location.reload(true)` on a 500ms interval, and starts CPU/memory exhaustion loops. Package metadata carries placeholder values (`author: '你的名字'`, repo `你的git仓库地址`), and `package.json` declares the package as its own dependency at `^9.9.9` while publishing as 10.0.0 — a self-referential range disjoint from the published version, which alters what subsequent installs resolve to. Any web application bundling this module will ship the payload to its end users once the trigger date passes; the forced.exe download plus redirect to an attacker-controlled host constitutes an attacker-benefiting payload against the installer's downstream users, not benign vandalism.

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-2026-15880?

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-2026-15880 is a malicious package: element-guci-util (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-2026-15880/ (Markdown: https://insights.sbomify.com/MAL-2026-15880/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-15880

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-15880/
Summaries are generated and may contain mistakes; the official description above is the record.