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Malicious code in slds-lsp-client (npm)

0
Medium
Published: 07/13/2026 (07/13/2026, 00:00:00 UTC)
Source: GCVE Database
Product: slds-lsp-client

Description

The slds-lsp-client package was published to the npm registry by user 'click2ai' (maintainer email [email protected]) as part of a dependency-confusion / reconnaissance campaign. The package name mimics the internal/private package naming convention of a target organization (a Salesforce SLDS / Lightning Design System language-server (LSP) tooling namespace) so that a misconfigured resolver installs this public lookalike instead of the intended private dependency. The package declares a preinstall hook ("npm install @sentry/node && node examples/verify.js") that executes automatically at npm install time, before any application code runs. The bundled examples/verify.js initializes the @sentry/node client against a hardcoded, attacker-controlled Sentry DSN with sendDefaultPii enabled, resolves the installing host's public egress IP address by requesting Cloudflare's /cdn-cgi/trace endpoint (using a spoofed desktop-browser User-Agent to bypass bot challenges), then deliberately triggers a runtime exception and captures it. Flushing the event beacons the collected host telemetry (public IP plus Sentry default PII such as hostname, OS username and runtime/environment metadata) to the attacker's Sentry ingest endpoint at o4510485815754752.ingest.us.sentry.io. Each impersonated namespace in the campaign beacons to a distinct Sentry project ID, letting the operator attribute successful installs to specific victim organizations — behaviour consistent with a dependency-confusion reconnaissance beacon rather than legitimate error monitoring. The install-time payload is byte-for-byte identical across all packages published by this account, differing only in the package name and the target DSN. This package's beacon targets Sentry project 4511716882972672. --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (d1a204f1615398c380936de4d1e2603cab90300e0e7bc20770ffd0bbe693ce80) Package name presents as a Salesforce Lightning Design System / Language Server Protocol client, but the shipped code is a thin Sentry wrapper with no SLDS or LSP functionality. package.json declares a preinstall script that runs `npm install @sentry/node && node examples/verify.js`, which resolves the installer's public IP via a Cloudflare trace endpoint, attaches it as the Sentry user identity (sendDefaultPii:true), and triggers a forced exception so the event — carrying the installer's IP and host/error metadata — is uploaded on `npm install` with no consent. The Sentry DSN is hardcoded to an author-controlled project at o4510485815754752.ingest.us.sentry.io/4511716882972672 (DEFAULT_DSN in src/index.js). The exported init() also falls back to the same hardcoded DSN when a caller does not supply one, so consumers of the library additionally route their application error telemetry and default PII to the same author endpoint. The name/description mismatch combined with an install-time beacon fits an opportunistic install-time data-collection package targeting typos or misfires. ## Source: ghsa-malware (2265e2b46fde3cf1883c191549a7bd9e5d2afe8072876c632b60edc4bc9e0cd6) 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.

Affected software

npmghsa
slds-lsp-client

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/13/2026, 09:56:26 UTC

Technical Analysis

The slds-lsp-client package on npm was published by user 'click2ai' as part of a dependency confusion and reconnaissance campaign. It mimics a private Salesforce SLDS LSP tooling namespace to be installed mistakenly by misconfigured package resolvers. The package's preinstall hook runs automatically during npm install, executing a script that initializes the @sentry/node client with a hardcoded attacker-controlled DSN. It collects the host's public IP by querying Cloudflare's trace endpoint and captures a runtime exception to send telemetry including default PII (hostname, OS username, runtime metadata) to the attacker's Sentry project. Each package in the campaign uses a distinct Sentry project ID to attribute installs to specific victims. The payload is identical across packages except for the package name and target DSN. This is a reconnaissance beacon rather than a direct exploit.

Potential Impact

The malicious package exfiltrates telemetry data including the host's public IP address, hostname, OS username, and runtime environment metadata to an attacker-controlled Sentry endpoint during installation. This can reveal information about the victim environment and confirm successful installation of the malicious package. There is no indication of further exploitation beyond reconnaissance in the provided data.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should audit their package dependencies and resolver configurations to prevent dependency confusion attacks. Avoid installing packages from untrusted or unexpected namespaces. Monitor for suspicious preinstall scripts in npm packages. Since no official fix is indicated, manual mitigation by correcting dependency resolution and removing the malicious package is advised.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-10234
Osv Schema Version
1.7.4
Aliases
[]
Ecosystems
["npm"]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a54ae0168715ace438f80ad

Added to database: 07/13/2026, 09:21:05 UTC

Last enriched: 07/13/2026, 09:56:26 UTC

Last updated: 07/29/2026, 14:00:56 UTC

Views: 28

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