--- canonical: "https://firewall.lpm.dev/npm/@shotstack/shotstack-studio" markdown: "https://firewall.lpm.dev/npm/@shotstack/shotstack-studio/v/2.18.0.md" package: "@shotstack/shotstack-studio" report_status: "published" title: "@shotstack/shotstack-studio@2.18.0 npm security report" verdict: "suspicious" version: "2.18.0" --- # @shotstack/shotstack-studio@2.18.0 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 **Flagged — allowed with a warning** — Allowed by default policy, but 12 finding(s) warrant review before installing. - **Verdict:** Suspicious - **Product-default install policy:** Warn - **Firewall policy:** Matched warn-list - **Public report status:** Published - **Threat category:** None published - **Selected version:** 2.18.0 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) The AI recommended clean, but the final policy action is warn. This report does not record a matching static-policy override reason. AI assessment: clean; recommendation: mark clean. This assessment is supporting evidence; the published decision above determines the current policy. No confirmed malicious attack surface was established. At runtime, rendering features may retrieve a WebAssembly font component and font or emoji assets. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Suspicious - **Recorded analysis confidence:** 91.0% - **Started:** 2026-09-17T09:58:58.729Z - **Finished:** 2026-09-17T10:00:37.952Z - **Download time:** 2272 ms - **Static scan time:** 25183 ms - **AI review time:** 71767 ms - **Total time:** 99223 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:** No confirmed malicious attack surface was established. At runtime, rendering features may retrieve a WebAssembly font component and font or emoji assets. - **Trigger:** A consumer invokes rendering or font initialization. - **Impact:** Network access for rendering assets; no evidence of credential theft, persistence, or project mutation. - **Review source:** ai\_review - **Reviewed:** 2026-09-17T10:00:37.952Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** Fetches and instantiates a font-shaping WebAssembly component. - **Rationale:** The scanner findings resolve to bundled rendering dependencies and an explicitly named font-shaping WebAssembly resource, not an install-time or covert payload chain. Static inspection found no malicious behavior. - **Network endpoints:** https://js.shotstack.io/canvas/hb.wasm, https://cdn.jsdelivr.net/gh/googlefonts/noto-emoji@main/svg, https://fonts.gstatic.com ### Review decision - **Verdict:** Clean - **Confidence:** 91.0% - **Recommended action:** mark\_clean - **Intent class:** Benign - **False-positive risk:** Low - **Final policy explanation:** The AI recommended clean, but the final policy action is warn. This report does not record a matching static-policy override reason. - **Evidence for AI clean decision:** The runtime fetches a remote WebAssembly font-shaping binary and compiles it., Bundled rendering code contains eval-based expressions. - **Evidence against:** The manifest has no preinstall, install, or postinstall hook; prepare only invokes Husky., The downloaded binary is checked for the WebAssembly magic bytes before use., The remote resources are fonts, emoji SVGs, and text-rendering support consistent with the package's video-editing purpose., No credential harvesting, shell execution, consumer-project writes, self-dependency, or exfiltration was found in the inspected files. ## Affected versions and remediation This report applies to @shotstack/shotstack-studio@2.18.0. - Review the evidence and your use of @shotstack/shotstack-studio@2.18.0 before allowing it. Restrict the permissions described in this report. - Choose an independently verified alternative or release. This report does not establish that other versions are safe. ## Public findings ### 1. Low: Non Install Lifecycle Scripts - **Category:** Manifest - **Confidence:** 80.0% Package declares lifecycle scripts that are not normally run for registry tarball installs. ### 2. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 3. High: Eval - **Category:** Source - **Confidence:** 80.0% - **Path:** dist/shotstack-studio.umd.js - **Public source:** [View source]() Package source references dynamic code evaluation. Public source snippet (untrusted): ```javascript L205: L206: `,d3:'// https://d3js.org v7.9.0 Copyright 2010-2023 Mike Bostock\n!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports):"function"==typeof define&&define.... L207: * anime.js v3.2.2 ``` ### 4. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 5. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 6. Critical: Remote Asset Decode Execute - **Category:** Source - **Confidence:** 90.0% - **Path:** dist/shotstack-studio.es.js - **Public source:** [View source]() Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload. Public source snippet (untrusted): ```javascript L43526: async load(t, i, r) { L43527: const n = t.split("?")[0]?.split(".").pop()?.toLowerCase() ?? "", s = await fetch(t).then((f) => f.arrayBuffer()); L43528: if (n !== "woff2") { ... L43539: return; L43540: const i = `${await fetch("https://unpkg.com/wawoff2@2.0.1/build/decompress_binding.js").then((r) => r.text())}; return Module`; L43541: this.woff2Decompressor = new Function(i)(), await new Promise((r) => { L43542: this.woff2Decompressor.onRuntimeInitialized = r; ``` ### 7. High: Obfuscated Payload Loader - **Category:** Source - **Confidence:** 86.0% - **Path:** dist/shotstack-studio.umd.js - **Public source:** [View source]() Source contains an obfuscated payload loader that reconstructs and executes hidden code. Public source snippet (untrusted): ```javascript L65: `)})}else r+=1}return t}function ZT(e){const t=[],i=e.split(/\r?\n/);let r=0;for(;r")){const[... L66: `)})}else r+=1}return t}function jT(e){return e.trim().startsWith("WEBVTT")?UT(e):ZT(e)}function WT(e,t){return e.find(i=>t>=i.start&&t<=i.end)??null}var HT=Object.create,Nc=Object... L67: `).filter(a=>a),n=Math.min(...r.map(a=>a.length-a.trimStart().length)),s=r.map(a=>a.slice(n)).map(a=>" ".repeat(this.indent*2)+a);for(const a of s)this.content.push(a)}compile(){co... L68: `))}};const dD={major:4,minor:4,patch:3},Xe=J("$ZodType",(e,t)=>{var i;e??(e={}),e._zod.def=t,e._zod.bag=e._zod.bag||{},e._zod.version=dD;const r=[...e._zod.def.checks??[]];e._zod.... L69: if (${_}.issues.length) { ... L205: L2 ``` ### 8. Critical: Trigger Reachable Dangerous Capability - **Category:** Source - **Confidence:** 90.0% - **Path:** dist/shotstack-studio.es.js - **Public source:** [View source]() A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior. Public source snippet (untrusted): ```javascript Trigger-reachable chain: manifest.module -> dist/shotstack-studio.es.js Reachable file contains a blocking source-risk pattern. ``` ### 9. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 10. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 11. 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. ### 12. High: Semantic Analysis Limited - **Category:** Scanner Coverage - **Confidence:** 100.0% - **Path:** dist/shotstack-studio.es.js - **Public source:** [View source]() A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review. Public source snippet (untrusted): ```javascript stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 2 ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** prepare, prepublishOnly - **Dependencies:** 8 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 27 - **Published dependency-graph edges:** 8 ### Published dependency entries - @shotstack/schemas 1.18.0 (Dependency) - @shotstack/shotstack-canvas ^2.10.2 (Dependency) - howler ^2.2.4 (Dependency) - mediabunny ^1.11.2 (Dependency) - opentype.js ^1.3.4 (Dependency) - pixi-filters ^6.0.5 (Dependency) - pixi.js ^8.15.0 (Dependency) - zod ^4.0.0 (Dependency) ## Package metadata - **Package:** @shotstack/shotstack-studio - **Ecosystem:** npm - **Version:** 2.18.0 - **License:** PolyForm Shield License 1.0.0 - **Version published:** 2026-08-27T11:14:40.240Z - **Package first seen:** 2026-07-02T11:28:16.533Z - **Package last seen:** 2026-09-30T21:48:54.666Z - **Known versions:** 22 - **Latest version:** 2.23.2 - **Appeal under review:** No - **Description:** A video editing library for creating and editing videos with Shotstack - **Author:** Shotstack - **Maintainers:** dazer, ommar - **Keywords:** shotstack, video, editing, ffmpeg - **Runtime engines:** node: \>=20 \<=24 - **Artifact files:** 9 - **Artifact unpacked size:** 11,992,938 bytes - **Artifact signatures:** 1 - **Attestations:** Yes - **Provenance:** https://slsa.dev/provenance/v1 ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]()