GCVE-110-OSM-2026-6481

Advisory PublishedCVSS 5.4/10

Vulnetix · Advisory published June 21, 2026

Hijacks npm package loading to execute a bundled obfuscated JavaScript payload at require time in a package attributed to DeceptiveDevelopment. Analyzer artifacts support require-time execution of a bundled obfuscated or encrypted JavaScript payload. Concrete network IOCs were not recovered in this run, so the submission does not claim a C2 endpoint or exfiltration destination. The package is attributed to DeceptiveDevelopment by the watchlist threat actor feed with high confidence.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

5.4/10

Medium · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected Products

Vendor	Product	Versions	Platforms
unknown	postcss-processor-utils	1.0.3 (affected)	—

References

Malicious npm package: postcss-processor-utils

advisory

vendor

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