Malicious code in @brick-v2/icons (npm)

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

@brick-v2/icons is a dependency confusion package published to npm on 2026-10-09 by the account s4yhii__, targeting the internal @galicia-toolkit-* / @brick-v2 package namespaces with inflated versions (e.g. 999.0.x). Early versions resolve <hostname>.<tag>.dc.oob.s4yhii.com via DNS to beacon the victim's hostname. Later versions run `node index.js` from a preinstall hook, which loads a bundled native addon (prebuilds/<platform>-<arch>/metrics.node, Linux and Windows builds). The addon forks a detached process that collects hostname, username, OS/arch, cwd and the full values of CI/cloud secrets from environment variables (NPM_TOKEN, NODE_AUTH_TOKEN, GITHUB_TOKEN, ACTIONS_RUNTIME_TOKEN, ACTIONS_ID_TOKEN_REQUEST_TOKEN, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, SYSTEM_ACCESSTOKEN, AZURE_DEVOPS_EXT_PAT and others) and sends them as JSON via HTTP POST /native to oob.s4yhii.com:9999. --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (915977ddb276c313e2977875d853dfba4eebd12f75ad0826008866b5059c68a8) @brick-v2/[email protected] is a dependency-confusion credential stealer. The package's package.json declares a preinstall script `node index.js`, and index.js's only behavior is to require a platform-specific prebuilt native addon from `prebuilds/<platform>-<arch>/metrics.node`. The native binary reads a curated list of CI and cloud secrets from the environment — AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, GITHUB_TOKEN, NPM_TOKEN, NODE_AUTH_TOKEN, SYSTEM_ACCESSTOKEN, ACTIONS_RUNTIME_TOKEN, ACTIONS_ID_TOKEN_REQUEST_TOKEN, AZURE_DEVOPS_EXT_PAT, and similar — along with hostname, username, cwd, and OS fields, and POSTs them as JSON to the hardcoded attacker endpoint `oob.s4yhii.com` at path `/native`. The JS shim presents a benign Angular-style facade (`forRoot`, `createLogger`, `version` exports) under a plausible scoped name, while the real behavior lives in the opaque native binary; no build system, binding.gyp, or source is shipped. The inflated version `999.0.3` is designed to win semver resolution against any legitimate internal `@brick-v2/icons` package, targeting private registries via dependency confusion. Harm is auto-executed on `npm install` via the preinstall hook, before any user code runs.

Source published

9 Oct 2026 00:00:00 UTC

Source modified

12 Oct 2026 05:30:06 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.