GCVE-110-OSM-2026-1455

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published April 5, 2026

Malicious package detected. Behaviors: data exfiltration, code execution, obfuscated code, install-time execution. Payload: postinstall.js Key findings: - Base64 Decoded Eval in postinstall.js: "eval(Buffer.from(" - Sensitive File Access in postinstall.js: "'/.aws/credentials'" - AWS Credential Access in postinstall.js: "process.env.AWS_ACCESS_KEY_ID" - Shell Command Execution in postinstall.js: "require('child_process')" - Dynamic Base64 Decoding in postinstall.js: "Buffer.from(encoded, 'base64')" IOCs: - ipv4: 203.0.113.99, 203.0.113.0 - urls: https://collect.df-sandbox-test.io/curl-beacon, https://collect.df-sandbox-test.io/wget-beacon` - domains: c2-beacon.df-sandbox-test.io, exfil.df-sandbox-test.io, collect.df-sandbox-test.io, process.env.CI - payloadFileHash: 0632f41a6b701856373b333ea419996623eaa96df42b7b34891475ea4084a796

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

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

Affected Products

Vendor	Product	Versions	Platforms
unknown	df-sandbox-test	all (affected)	—

References

Malicious npm package: df-sandbox-test

advisory

vendor

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