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Malicious code in gethandler-api (npm)

0
Critical
Published: 06/09/2026 (06/09/2026, 20:29:26 UTC)
Source: GCVE Database
Product: gethandler-api

Description

The npm package 'gethandler-api' version 0.0.1 contains malicious code that, upon installation, silently sends detailed system and user information to a third-party webhook URL. This behavior effectively fingerprints any user who mistakenly installs this typosquatted package. The package is described as a defensive typo-squat placeholder but performs non-consensual data transmission. Systems with this package installed should be considered fully compromised, and all secrets and keys on such systems should be rotated immediately.

Affected software

npmghsa
gethandler-api
Affected versions
=0.0.1

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/12/2026, 17:17:20 UTC

Technical Analysis

The 'gethandler-api' npm package version 0.0.1 includes a postinstall script that unconditionally sends an HTTPS GET request to a third-party webhook URL containing the installer's hostname, username, platform, current working directory, package name/version, CI environment indicators, and a timestamp. This silent data exfiltration occurs without user consent and is designed to fingerprint users who mistakenly install this typosquatted package. The package self-describes as a defensive typo-squat placeholder for the @getd/* namespace, but the beaconing behavior exposes sensitive environment details to any party with access to the webhook URL. According to the source, any computer with this package installed should be considered fully compromised, with immediate rotation of all secrets and keys recommended.

Potential Impact

Installation of this package results in non-consensual exfiltration of sensitive environment and user information to a third party, enabling fingerprinting of affected systems. The package is considered fully compromising the host, potentially allowing an attacker full control. Secrets and keys stored on the compromised system are at risk and should be rotated immediately. Removal of the package alone does not guarantee eradication of all malicious software introduced.

Mitigation Recommendations

No official patch or fix is available. Immediate removal of the 'gethandler-api' package version 0.0.1 is recommended. Systems with this package installed should be treated as fully compromised. All secrets and keys stored on the affected systems must be rotated from a separate, trusted environment. Monitor for any signs of further compromise and consider full system remediation or rebuild.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-5473
Osv Schema Version
1.7.4
Aliases
["GHSA-92ff-fv46-jh35"]
Ecosystems
["npm"]

Threat ID: 6a54adee68715ace438f6c0d

Added to database: 07/13/2026, 09:20:46 UTC

Last enriched: 09/12/2026, 17:17:20 UTC

Last updated: 09/13/2026, 10:44:29 UTC

Views: 50

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