GCVE-110-OSM-2026-4153

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 12, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, code execution, network activity, install-time execution. [osmalyze-auto] Entrypoint: index.js (install-hook: node index.js) Exfil: https://8fod0l4hevyuf8q98nsrqwzlrcxel49t.oastify.com (oast, recovery: plaintext in index.js) Payload: index.js Key findings: - Sensitive File Access in index.js: "'~/.aws/credentials'" - OAST/Interactsh Exfiltration in index.js: "oastify.com" - Publisher Has Other Malicious Packages - Shell Command Execution in index.js: "require('child_process')" - Install Hook Executes Local JS File in package.json: ""preinstall": "node index.js"" IOCs: - urls: http://169.254.169.254/latest/meta-data/, http://169.254.169.254/latest/meta-data/iam/security-credentials/ - domains: kubernetes.io - oastEndpoints: https://8fod0l4hevyuf8q98nsrqwzlrcxel49t.oastify.com - payloadFileHash: 096fb8eed3d780c61a6c818e1ee2ff51cc90a4ebe49fcf0c3aaa82c22a711cbc

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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	backoff-table	* (affected), all (affected), all (affected), all (affected)	—

References

Malicious npm package: backoff-table

advisory

vendor

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