Malicious code in nextjsupdater (npm)

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--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (b01b587101f97acb47185dc58bab28ebfdf18a7619af7a664c17629339e2ddca) The package masquerades as a Next.js updater but its exported `downloadAndRunUpdate` function fetches `updater.hta` from an unrelated personal GitHub repository (Acevatex/Testprogram) on the mutable `main` branch with no commit pin and no integrity check, writes it to the OS temp directory, and launches Windows `mshta.exe` detached with a hidden window (`spawn('mshta', [destPath], { detached: true, windowsHide: true })`). HTA is a well-known Windows LOLBIN that executes arbitrary script content with the privileges of the invoking user. The fetched content is attacker-mutable — the repository owner can change the HTA at any time — and the payload runs hidden and detached from the host process. The package name and API surface are designed to entice invocation from Next.js projects that believe they are pulling a framework update.

Source published

31 Aug 2026 18:03:32 UTC

Source modified

23 Sep 2026 04:31:17 UTC

Saved here

24 Oct 2026 13:17:17 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.