If this package is installed
Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.
Details
brioche-apl-dev-env is a dependency-confusion package: it takes a name that looks like an internal project, uses an inflated version (100.0.0) so it outranks private-registry versions, and runs `node setup.js || true` as a preinstall script on npm install. setup.js sends the hostname, username, working directory, OS, architecture, Node.js version and configured npm registry, with a per-package tracking token, in an HTTPS POST to `https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook`. The npm account amel10 published brioche-apl-dev-env and 9 similar packages within two minutes on 2026-09-30, all with the same setup.js.
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_-= Per source details. Do not edit below this line.=-_
Source: amazon-inspector (637c99e6cd2bd8e143f01f5f522a7497375a24072fca131057cfd40ae0bb0d3e)
The package declares a `preinstall` script that runs `setup.js` during `npm install`. That script collects installer host identifiers (hostname, OS username, current working directory, platform/arch, Node.js version, configured npm registry) together with a static per-package token, serializes them as JSON, and POSTs them to a hardcoded endpoint at https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook. The package is presented as a small utility (vowel-counting) but its only install-time effect is this outbound beacon to an author-controlled AWS API Gateway URL. The version number (100.0.0) and package naming are consistent with a dependency-confusion lure targeting an internal `brioche-apl-*` namespace, and the transmitted fields (internal hostname, username, cwd, configured registry) are exactly the reconnaissance data used to identify successfully hijacked internal builds.
Indicators of compromise
Shown defanged and not clickable. Search any indicator to find other packages using it.
Domains
- s85r5k14qk[.]execute-api[.]us-east-1[.]amazonaws[.]com other packages →
URLs
- hxxps://s85r5k14qk[.]execute-api[.]us-east-1[.]amazonaws[.]com/prod/hook other packages →