checkout-pay-button-logic (npm) · Malicious Code
Affects checkout-pay-button-logicSource GCVE Database
Malicious package : remove checkout-pay-button-logic and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 16:00 UTC
Malicious package
Published to npm · OSV MAL-2026-12584
What to do
Remove checkout-pay-button-logic 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-pay-button-logic | Affected
| Fixed in– |
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Description
The npm package 'checkout-pay-button-logic' version 35.3.8 contains malicious code that, upon requiring the package, downloads and executes a native binary payload from obfuscated Cloudflare Workers hostnames and fallback DNS-TXT resolvers. The payload is saved to temporary directories with deceptive filenames and executed detached from the main process. The malicious code attempts to mimic legitimate telemetry opt-out behavior but is unrelated to the package's stated functionality.