VDB
GCVE-110-OSM-2026-4284
GCVE-110-OSM-2026-4284
Advisory PublishedCVSS 5.4/10
[osmalyze-auto] Bug bounty dependency confusion attempt. Package exfiltrates basic system information (hostname, IP, DNS) to security research infrastructure. Behaviors: data exfiltration, code execution, network activity, install-time execution.
[osmalyze-auto] Entrypoint: index.js (install-hook: node index.js)
Payload: index.js
Key findings:
- OAST/Interactsh Exfiltration in index.js: "oastify.com"
- Shell Command Execution in index.js: "require('child_process')"
- Data Encoding for Exfiltration in index.js: "encodeURIComponent(key)}=${encodeURIComponent(value"
- Install Hook Executes Local JS File in package.json: ""postinstall": "node index.js""
- Publisher Has Other Malicious Packages
IOCs:
- payloadFileHash: 36f76ddcc88aed998e07955f2d18daeb1b723dcd68e8185d42bbde7c4b90a2d7
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 | claude-code-base-action | all (affected) | — |
Aliases
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