GCVE-110-OSM-2026-11439

Advisory PublishedCVSS 5.4/10

Vulnetix · Advisory published September 1, 2026

The package is a Proof of Concept (POC) by a known bug-bounty researcher zabit The package.json file calls a pre-install script that exfiltrates the /etc/passwd file to a oast.fun URL

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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	codemirror-5	all (affected)	—

References

Malicious npm package: codemirror-5

advisory

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