VDB

GCVE-110-OSM-2026-13296

GCVE-110-OSM-2026-13296
Advisory PublishedCVSS 8.8/10
Vulnetix · Advisory published October 5, 2026
The package presents itself as a CSS polyfill but ships thunderboltRegistry.js, which on require() executes a top-level IIFE that runs id, whoami, uname -a, ifconfig/ip addr, and reads /etc/hosts via child_process.execSync, then posts the command outputs together with hostname, node version, platform, and pid to the hardcoded plain-HTTP endpoint http://dxpoc.gt.tc/callback.php/ using fetch. The module also deletes its own entries from require.cache so the payload re-runs on each require() rather than being memoized. The package name and the thunderbolt/editor/corvid Proxy facade impersonate Wix parastorage registry modules to encourage accidental installation. ENTRY index.js (main: index.js) DESTINATION - 2 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - Data Encoding for Exfiltration in thunderboltRegistry.js: "encodeURIComponent(site)).catch(function(){}); } catch(e" - System Information Collection in thunderboltRegistry.js: "process.platform" ADDITIONAL FINDINGS - Shell Command Execution in thunderboltRegistry.js: "require("child_process")" - Brand New Package - Very New NPM Publisher Account - Publisher Has Other Malicious Packages PAYLOAD FILES thunderboltRegistry.js

Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1
8.8/10
High · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersionsPlatforms
unknowncss-ikomdq-polyfillall (affected)—

References

advisory
vendor

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