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Malicious code in calcite-web (npm)

0
Critical
Published: 08/28/2026 (08/28/2026, 23:13:35 UTC)
Source: GCVE Database
Product: calcite-web

Description

The npm package 'calcite-web' version 45.0.0 contains malicious code due to a dependency confusion attack. The package.json declares the package's own name as a dependency pointing to an external URL, which allows arbitrary code execution during installation. The shipped index.js is inert, but the install-time payload is controlled by whoever manages the external URL, enabling full compromise of any system installing this package. Immediate removal and secret/key rotation are strongly advised.

Affected software

npmghsa
calcite-web
Affected versions
=45.0.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/09/2026, 20:38:13 UTC

Technical Analysis

The 'calcite-web' npm package version 45.0.0 is malicious because its package.json declares a dependency on itself via a bare URL (https://repo.securityctrl.com/calcite-web) instead of a versioned registry reference. During npm install, this causes npm to fetch and execute arbitrary code from that URL without version pinning or integrity checks. The actual shipped code is inert, but the install-time payload controlled by the external URL operator executes lifecycle scripts, effectively compromising the host system. This is a dependency confusion attack with an implausibly high version number to override legitimate internal packages.

Potential Impact

Any computer with this package installed or running is considered fully compromised. Attackers controlling the external URL can execute arbitrary code with the privileges of the installer. All secrets and keys stored on the compromised system should be considered exposed and must be rotated immediately from a secure environment. Removing the package alone may not remove all malicious artifacts or backdoors installed by the attacker.

Mitigation Recommendations

Remove the 'calcite-web' package version 45.0.0 immediately from all affected systems. Rotate all secrets, keys, and credentials that were stored or accessible on compromised machines from a different, secure computer. Because the attacker may have persistent access, consider a full system audit or rebuild. There is no official patch or fixed version indicated; avoid installing this package version or any that use external URL dependencies without integrity verification.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-15499
Osv Schema Version
1.7.4
Ecosystems
["npm"]

Threat ID: 6a92f7e3acd9273b49e75d04

Added to database: 08/29/2026, 15:16:51 UTC

Last enriched: 09/09/2026, 20:38:13 UTC

Last updated: 10/01/2026, 22:27:31 UTC

Views: 32

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