jquery.ui.core (npm) · Malicious Code
Affects jquery.ui.coreSource GCVE Database
Malicious package : remove jquery.ui.core and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 17:13 UTC
Malicious package
Published to npm · OSV MAL-2026-12394
What to do
Remove jquery.ui.core 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 |
|---|---|---|
| npmjquery.ui.core | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
A malicious package named jquery.ui.core version 9999.0.0 was published to the npm registry as a dependency-confusion attack. The package contains an empty module but includes a preinstall script that collects environment and system information, including hostnames, usernames, current working directory, npm registry configuration, and CI repository identifiers. This information is sent via an unencrypted HTTP request to a remote server. The package is designed to identify internal build systems that mistakenly resolve private package names to the public npm registry.