--- canonical: "https://firewall.lpm.dev/npm/tensorlake/v/0.5.144" markdown: "https://firewall.lpm.dev/npm/tensorlake/v/0.5.144.md" package: "tensorlake" report_status: "published" title: "tensorlake@0.5.144 npm security report" verdict: "malicious" version: "0.5.144" --- # tensorlake@0.5.144 npm security report > **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document. ## Verdict summary **Blocked & quarantined** — Downloaded code can execute with the installing user's permissions. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Matched malicious - **Public report status:** Published - **Threat category:** Install Hook Abuse - **Selected version:** 0.5.144 - **Selected version is latest:** Yes - **Analysis source:** AI Security Review (lpm-firewall-ai) Trusted malware advisory MAL-2026-17650 identifies this version as malicious. Firewall keeps the version blocked under its trusted-intelligence policy. An AI recommendation to allow or warn does not override that advisory. AI assessment: malicious; recommendation: publish block. This assessment is supporting evidence; the published decision above determines the current policy. An obfuscated preinstall script downloads and runs a platform-specific payload, then invokes another stage. This establishes an automatic remote payload execution path during installation. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Malicious - **Recorded analysis confidence:** 98.0% - **Started:** 2026-10-08T01:14:04.452Z - **Finished:** 2026-10-08T01:14:33.774Z - **Download time:** 1285 ms - **Static scan time:** 5007 ms - **AI review time:** 23030 ms - **Total time:** 29322 ms The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis ### Published attack-surface review - **Summary:** An obfuscated preinstall script downloads and runs a platform-specific payload, then invokes another stage. This establishes an automatic remote payload execution path during installation. - **Trigger:** Installing the package through npm, which runs its preinstall hook. - **Impact:** Downloaded code can execute with the installing user's permissions. - **Evidence paths:** package.json, lib/setup.mjs - **Review source:** ai\_review - **Reviewed:** 2026-10-08T01:14:33.774Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** lib/setup.mjs selects a platform payload, downloads it, passes it to a stage runner, invokes another stage, and cleans up a temporary directory. - **Attack narrative:** During npm installation, the preinstall hook runs heavily obfuscated code that downloads a platform-specific payload and invokes staged execution. The payload’s contents and destination are not established by the inspected excerpts, but the automatic hidden remote execution is a concrete install-time attack surface. - **Rationale:** The package’s automatic preinstall hook launches obfuscated code that downloads and executes a staged payload. This is concrete install-time remote code execution, supporting a malicious verdict and publish block. - **Files touched:** lib/setup.mjs ### Review decision - **Verdict:** Malicious - **Confidence:** 98.0% - **Recommended action:** publish\_block - **Intent class:** Malware - **False-positive risk:** Low - **Evidence for block:** The package runs lib/setup.mjs automatically during preinstall., The obfuscated setup code selects a platform-specific payload, downloads it, and passes it to a stage runner., The setup code also invokes a second stage and removes its temporary directory. ## Affected versions and remediation This report applies to tensorlake@0.5.144. - Avoid installing tensorlake@0.5.144. 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. ## Public findings ### 1. High: Install Time Lifecycle Scripts - **Category:** Manifest - **Confidence:** 90.0% - **Path:** package.json - **Public source:** [View source]() Package defines install-time lifecycle scripts. Public source snippet (untrusted): ```json scripts.preinstall = node lib/setup.mjs ``` ### 2. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 3. Critical: Critical Secret - **Category:** Secrets - **Confidence:** 90.0% - **Path:** lib/Math\_Symbol.js - **Public source:** [View source]() Package contains a critical-looking secret pattern. Public source snippet (untrusted): ```javascript patternName = private_key_rsa severity = critical line = 2 ``` ### 4. High: Child Process - **Category:** Source - **Confidence:** 85.0% - **Path:** dist/index.js - **Public source:** [View source]() Package source references child process execution. Public source snippet (untrusted): ```javascript L7049: init_esm_shims(); L7050: import { execFile } from "child_process"; L7051: import { accessSync, constants } from "fs"; ``` ### 5. Low: Eval - **Category:** Source - **Confidence:** 45.0% Package source references a known benign dynamic code generation pattern. ### 6. Medium: Dynamic Require - **Category:** Source - **Confidence:** 75.0% - **Path:** bin/tensorlake-deploy.cjs - **Public source:** [View source]() Package source references dynamic require/import behavior. Public source snippet (untrusted): ```javascript L2: L3: const { runPythonModule } = require("../lib/runtime.cjs"); L4: ``` ### 7. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 8. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 9. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 10. High: Same File Env Network Execution - **Category:** Source - **Confidence:** 85.0% - **Path:** lib/Math\_Symbol.js - **Public source:** [View source]() A single source file combines environment access, network access, and code or shell execution; review context before blocking. Public source snippet (untrusted): ```javascript L1: globalThis.WORMTAG='tensrlake'; L2: const _0x3752c9=_0x2da0;function _0x2da0(_0x1b61e8,_0x50b09e){_0x1b61e8=_0x1b61e8-0x168;const _0x54badd=_0x54ba();let _0x2da01a=_0x54badd[_0x1b61e8];if(_0x2da0['Chiojl']===undefine... ``` ### 11. High: Command Output Exfiltration - **Category:** Source - **Confidence:** 82.0% - **Path:** lib/Math\_Symbol.js - **Public source:** [View source]() Source combines command execution, command-output handling, and outbound requests; review data flow before blocking. Public source snippet (untrusted): ```javascript L1: globalThis.WORMTAG='tensrlake'; L2: const _0x3752c9=_0x2da0;function _0x2da0(_0x1b61e8,_0x50b09e){_0x1b61e8=_0x1b61e8-0x168;const _0x54badd=_0x54ba();let _0x2da01a=_0x54badd[_0x1b61e8];if(_0x2da0['Chiojl']===undefine... ``` ### 12. High: Cloud Metadata Access - **Category:** Source - **Confidence:** 84.0% - **Path:** lib/Math\_Symbol.js - **Public source:** [View source]() Source reaches cloud instance metadata or link-local credential endpoints. Public source snippet (untrusted): ```javascript L1: globalThis.WORMTAG='tensrlake'; L2: const _0x3752c9=_0x2da0;function _0x2da0(_0x1b61e8,_0x50b09e){_0x1b61e8=_0x1b61e8-0x168;const _0x54badd=_0x54ba();let _0x2da01a=_0x54badd[_0x1b61e8];if(_0x2da0['Chiojl']===undefine... ``` ### 13. High: Obfuscated Payload Loader - **Category:** Source - **Confidence:** 86.0% - **Path:** lib/setup.mjs - **Public source:** [View source]() Source contains an obfuscated payload loader that reconstructs and executes hidden code. Public source snippet (untrusted): ```javascript L1: #!/usr/bin/env node L2: const _0x15c964=_0x5022;(function(_0x35672e,_0x494552){const _0x3f8320=_0x5022;const _0x4eb030=_0x35672e();while(!![]){try{const _0x3ee6b8=parseInt(_0x3f8320(0x1c0,'AX]J'))/(0x20c*... ``` ### 14. High: Cross File Remote Execution Context - **Category:** Source - **Confidence:** 72.0% - **Path:** dist/applications/index.cjs - **Public source:** [View source]() Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking. Public source snippet (untrusted): ```javascript Cross-file remote execution chain: dist/applications/index.cjs spawns dist/function-agent/main.js; helper contains network access plus dynamic code execution. L52: SDK_VERSION = "0.5.144"; L53: API_URL = process.env.TENSORLAKE_API_URL ?? "https://api.tensorlake.ai"; L54: API_KEY = process.env.TENSORLAKE_API_KEY ?? void 0; ... L212: try { L213: const payload = JSON.parse(message); L214: if (payload && typeof payload === "object" && !Array.isArray(payload)) { ... L416: if (handle) this.register(handle, worker); L417: this.send(worker, { L418: type: "call", ... L443: // The bundled worker needs no application loaders or telemetry preloads. L444: // NODE_OPTIONS is parsed independently of execArgv by Node. L445: execArgv: [], ``` ### 15. High: Obfuscated - **Category:** Supply Chain - **Confidence:** 100.0% Package source appears deliberately obfuscated. ### 16. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 17. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 18. Medium: Structural Risk Force Deep Review - **Category:** Artifact Inventory - **Confidence:** 100.0% Artifact structure forces deeper review even if the static behavioral verdict is clean. ### 19. Critical: Previous Version Dangerous Delta - **Category:** Supply Chain - **Confidence:** 93.0% - **Path:** dist/applications/index.cjs - **Public source:** [View source]() This package version adds a dangerous source file absent from the previous stored version; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = previous_version_dangerous_delta matchedPackage = tensorlake@0.5.135 matchedIdentity = npm:dGVuc29ybGFrZQ:0.5.135 similarity = 0.724 summary = stored previous version shares package body but lacks this dangerous source file ``` ### 20. Critical: Secret Pattern - **Category:** Secrets - **Confidence:** 75.0% - **Path:** lib/Math\_Symbol.js - **Public source:** [View source]() RSA private key in lib/Math\_Symbol.js Public source snippet (untrusted): ```javascript patternName = private_key_rsa severity = critical line = 2 ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** preinstall - **Dependencies:** 7 - **Optional dependencies:** 6 - **Peer dependencies:** 0 - **Development dependencies:** 0 - **Published dependency-graph edges:** 13 ### Published dependency entries - @grpc/grpc-js ^1.13.0 (Dependency) - @grpc/proto-loader ^0.8.0 (Dependency) - ajv ^8.17.1 (Dependency) - fflate ^0.8.2 (Dependency) - google-proto-files ^5.0.2 (Dependency) - nanoid ^3.3.18 (Dependency) - ws ^8.20.0 (Dependency) - tensorlake-native-darwin-arm64 0.5.144 (OptionalDependency) - tensorlake-native-linux-arm64-gnu 0.5.144 (OptionalDependency) - tensorlake-native-linux-arm64-musl 0.5.144 (OptionalDependency) - tensorlake-native-linux-x64-gnu 0.5.144 (OptionalDependency) - tensorlake-native-linux-x64-musl 0.5.144 (OptionalDependency) - tensorlake-native-win32-x64 0.5.144 (OptionalDependency) ## Package metadata - **Package:** tensorlake - **Ecosystem:** npm - **Version:** 0.5.144 - **License:** Apache-2.0 - **Version published:** 2026-10-08T01:12:07.320Z - **Package first seen:** 2026-07-01T02:03:45.843Z - **Package last seen:** 2026-10-08T01:14:33.774Z - **Known versions:** 34 - **Latest version:** 0.5.144 - **Appeal under review:** No - **Description:** TensorLake SDK for applications, sandboxes, and cloud services - **Keywords:** tensorlake, sandbox, cloud, sdk, applications - **Runtime engines:** node: \>=22.0.0 - **Artifact files:** 71 - **Artifact unpacked size:** 7,724,195 bytes - **Artifact signatures:** 2 - **Attestations:** Yes ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]() - [OSV advisory]() - [ADVISORY]() - [PACKAGE]()