--- canonical: "https://firewall.lpm.dev/npm/crossmint-wallets-sdk" markdown: "https://firewall.lpm.dev/npm/crossmint-wallets-sdk/report.md" package: "crossmint-wallets-sdk" report_status: "published" title: "crossmint-wallets-sdk@1.0.0 npm security report" verdict: "malicious" version: "1.0.0" --- # crossmint-wallets-sdk@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 by malware advisory** — OpenSSF/OSV malware advisory MAL-2026-6545 identifies this version as malicious and supplies the Firewall block. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Trusted malware advisory block - **Public report status:** Published - **Threat category:** Malware - **Selected version:** 1.0.0 - **Selected version is latest:** Yes - **Analysis source:** OpenSSF/OSV Malicious Advisory (OpenSSF/OSV) OpenSSF/OSV malware advisory MAL-2026-6545 identifies this version as malicious and supplies the Firewall block. OpenSSF/OSV advisory MAL-2026-6545 confirms this npm version as malicious. Package name impersonates the Crossmint wallet SDK family. Both preinstall.js and index.js import child\_process, capture host identifiers (hostname is read on line 7/9 respectively), and POST the collected data via https.request to a hardcoded external endpoint (line 12/23). The preinstall.js path fires automatically on \`npm install\` before any user code runs, giving the publisher install-time data exfiltration from... ## Latest scan - **Scanner version:** external-osv-malicious-v1 - **Recorded final verdict:** Malicious - **Recorded analysis confidence:** 100.0% - **Started:** 2026-06-30T15:00:00.099Z - **Finished:** 2026-06-30T15:00:00.099Z - **Download time:** Not available - **Static scan time:** Not available - **AI review time:** Not available - **Total time:** Not available The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis No additional public attack-surface or AI-review details are available. ## Affected versions and remediation This report applies to crossmint-wallets-sdk@1.0.0. - Avoid installing crossmint-wallets-sdk@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. High: Osv Malicious Advisory - **Category:** External Intel - **Confidence:** 100.0% Package name impersonates the Crossmint wallet SDK family. Both preinstall.js and index.js import child\_process, capture host identifiers (hostname is read on line 7/9 respectively), and POST the collected data via https.request to a hardcoded external endpoint (line 12/23). The preinstall.js path fires automatically on \`npm install\` before any user code runs, giving the publisher install-time data exfiltration from any developer or build system that installs this package. The combination of child\_process + hostname collection + outbound POST in a preinstall lifecycle script, in a package whose name typosquats a known wallet SDK, matches the active-attack credential/reconnaissance exfiltration fingerprint. \#\# Source: ghsa-malware (87671437bf61440c69244dbb16af87b5f0df48e46b990bf4814be4fdb2001b03) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it. ## 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:** crossmint-wallets-sdk - **Ecosystem:** npm - **Version:** 1.0.0 - **Version published:** Not available - **Package first seen:** 2026-06-30T15:00:00.099Z - **Package last seen:** 2026-06-30T15:00:00.099Z - **Known versions:** 1 - **Latest version:** 1.0.0 - **Appeal under review:** No ## References - [HTML security report]() - [OpenSSF/OSV advisory]() - [PACKAGE]() - [ADVISORY]()