checkout-desktop-pay-widget (npm) · Malicious Code
Affects checkout-desktop-pay-widgetSource GCVE Database
Malicious package : remove checkout-desktop-pay-widget and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 15:55 UTC
Malicious package
Published to npm · OSV MAL-2026-12559
What to do
Remove checkout-desktop-pay-widget from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmcheckout-desktop-pay-widget | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
The npm package 'checkout-desktop-pay-widget' version 35.6.3 contains malicious code that downloads and executes opaque native binaries from Cloudflare Workers hosts. It uses obfuscation techniques to evade detection, including runtime-assembled hostnames and a DNS-TXT record fallback channel for covert payload retrieval. The package masquerades as a legitimate payment widget but functions as a remote code execution dropper without verifying downloaded payloads.