registry / Remote code execution / devplatform-spa-route-tree
devplatform-spa-route-tree
Devplatform spa route tree SDK for internal consumers
This report shows the evidence for devplatform-spa-route-tree@35.1.3, the only known version.
This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe import-time, unverified remote payload execution chain is concrete and complete in _loader.js. Absence of lifecycle scripts does not mitigate runtime execution when consumers import the package.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of the package entrypoint.
Impact
Arbitrary remote code executes with the privileges of the consuming Node process.
Mechanism
remote binary download, temporary-file drop, and detached execution
Attack narrative
Requiring index.js silently imports _loader.js. The loader selects a platform payload, downloads it from obfuscated external hosts or reconstructs it from DNS TXT records, saves it under a random temporary name, marks it executable on Unix, and runs it through a detached shell or cmd.exe process. This behavior is unrelated to the documented route-tree API and permits the remote operator to execute arbitrary code.
AI rationale
The import-time, unverified remote payload execution chain is concrete and complete in _loader.js. Absence of lifecycle scripts does not mitigate runtime execution when consumers import the package.
Evidence
package.jsonindex.js_loader.jsREADME.mdlib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devoob-worker.cf99-9b3.workers.dev
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _loader.js on every package require.
- _loader.js downloads platform binaries over HTTPS and DNS TXT.
- _loader.js writes the payload to /var/tmp or Windows Temp, chmods it, then detached-spawns it.
- No checksum, signature, or trusted payload verification is present.
- README describes only a route-tree interface, not binary downloading or execution.
Evidence against
- package.json has no lifecycle scripts.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_loader.jsView file
4const fs = require("fs");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L45: const CACHE_TTL = 22087;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L57: const isWin = _p("platform") === "win32";
L58: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L59: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_loader.jsView on unpkg · L44Trigger-reachable chain: manifest.main -> index.js -> _loader.js
L4: const fs = require("fs");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L45: const CACHE_TTL = 22087;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L57: const isWin = _p("platform") === "win32";
L58: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L59: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
_loader.jsView on unpkg · L4Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_loader.js
CriticalTrigger Reachable Dangerous Capability_loader.js
HighChild Process_loader.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to devplatform-spa-route-tree@35.1.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing devplatform-spa-route-tree@35.1.3. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.