The syft-acp-uikit package was published to the npm registry by user 'ada8877' (maintainer email k3mlol@proton.me) as part of a dependency-confusion / reconnaissance campaign. The package name mimics the 'syft-acp' internal/private package naming convention (an ACP component library) of a target organization, so that a misconfigured resolver installs this public lookalike instead of the intended private dependency.
The package declares a preinstall hook ("npm install @sentry/node && node examples/verify.js") that executes automatically at npm install time, before any application code runs. The bundled examples/verify.js initializes the @sentry/node client against a hardcoded, attacker-controlled Sentry DSN with sendDefaultPii enabled, resolves the installing host's public egress IP address by requesting Cloudflare's /cdn-cgi/trace endpoint (using a spoofed desktop-browser User-Agent to bypass bot challenges), then deliberately triggers a runtime exception and captures it. Flushing the event beacons the collected host telemetry (public IP plus Sentry default PII such as hostname, OS username and runtime/environment metadata) to the attacker's Sentry ingest endpoint at o4510485815754752.ingest.us.sentry.io.
Each impersonated namespace in the campaign beacons to a distinct Sentry project ID, letting the operator attribute successful installs to specific victim organizations — behaviour consistent with a dependency-confusion reconnaissance beacon rather than legitimate error monitoring. The install-time payload is byte-for-byte identical to the earlier 'click2ai' campaign, sharing the same Sentry organization (o4510485815754752) and a related ProtonMail maintainer identity, and differs only in the package name and target DSN. This package's beacon targets Sentry project 4511744089718784.
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The package declares a preinstall script that runs examples/verify.js, which initializes @sentry/node against a hardcoded author-controlled Sentry DSN (https://e82e1244d311e1f83fd57d89db4d62a3@o4510485815754752.ingest.us.sentry.io/4511744089718784), fetches the installer's public egress IP via https://www.cloudflare.com/cdn-cgi/trace, triggers an error, and flushes a Sentry event carrying the resolved IP to the author's project on every npm install. src/index.js additionally hardcodes the same DSN as DEFAULT_DSN and sets sendDefaultPii: true, so consumers who call init() without an explicit dsn silently route their captured error events and PII to the same author-controlled destination. The package name evokes the unrelated 'syft' ecosystem and a UI toolkit while its actual code is a thin Sentry wrapper against an author-owned DSN, and the README is a two-line stub — a name/behavior mismatch consistent with an impersonation lure.
{
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-011308",
"import_time": "2026-08-04T22:30:10.22318816Z",
"modified_time": "2026-08-04T22:02:41Z",
"sha256": "694d28b5d3d4fc19b2dc3399b982cc5333b4bc73fcdd45754194e9689737ee18",
"source": "amazon-inspector",
"versions": [
"1.9.45"
]
},
{
"id": "IN-MAL-2026-016544",
"import_time": "2026-08-06T14:19:54.673652168Z",
"modified_time": "2026-08-06T13:56:15Z",
"sha256": "ebebc8c4bd637b252ec48552b67e795fc287f8d8fc314d3b35e4b090f5f1d9e3",
"source": "amazon-inspector",
"versions": [
"1.0.0"
]
}
]
}[
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
},
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
},
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
}
]
{
"evidence_files": [
{
"path": "examples/verify.js",
"sha256": "d9b24679ee510878db77696e7e5524fe7359c7ae6827a816e18341b0f395bb82",
"tlsh": "8e21beace8f75573217b10885b1b14563ab206c22309f992badc8f6f5fc1c25d27399a"
},
{
"path": "src/index.js",
"sha256": "56d11190ab3ba5b0934c557b112955d8782bd8054348bef2d3a0a2bcbdef804a",
"tlsh": "e012959a34f6332301e250f0025f90d97365d67a3379a9e071598be92fd90b8d6b3ec9"
},
{
"path": "package.json",
"sha256": "ffed4c287f17a8e200c702c82ba8ee5a8950921cf8e195d3f433df374c5d8a3d",
"tlsh": "fbf078508d742f2316d4b7b56c690146a764ce4701a43d1936cb022d4f8c77f24ff5ae"
}
],
"package_integrity": [
{
"filename": "syft-acp-uikit-1.9.45.tgz",
"hashes": {
"sha1": "bb33525248e63774cfa60a5156511e7b864f7238",
"sha512_sri": "sha512-OKR2i92gqz4nMaDSQlddebmsvBVaC5OtybxA3wIy6YGKJr+1AhvRDwBmyJT+0dTLzK6VJTTR9AUt/mkkC276FQ=="
}
}
]
}
{
"domains": [
"o4510485815754752.ingest.us.sentry.io"
],
"urls": [
"https://e82e1244d311e1f83fd57d89db4d62a3@o4510485815754752.ingest.us.sentry.io/4511744089718784"
]
}
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/syft-acp-uikit/MAL-2026-10766.json"