checkout-use-notifications (npm) · Malicious Code
Affects checkout-use-notificationsSource GCVE Database
Malicious package : remove checkout-use-notifications and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 16:06 UTC
Malicious package
Published to npm · OSV MAL-2026-12602
What to do
Remove checkout-use-notifications 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-use-notifications | Affected
| Fixed in– |
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Description
The npm package 'checkout-use-notifications' version 35.6.1 contains malicious code that, upon requiring the package, loads a script which fetches a platform-specific binary payload from obfuscated Cloudflare Workers hosts. The payload is delivered using a DNS TXT-record fallback channel and is saved to temporary directories under disguised filenames before execution. This behavior is characteristic of a malicious dropper designed to evade detection and persist on the system.