VDB
GCVE-110-OSM-2026-5078
GCVE-110-OSM-2026-5078
Advisory PublishedCVSS 5.4/10
Bug bounty dependency confusion attempt. Package exfiltrates basic system information (hostname, IP, DNS) to security research infrastructure. Behaviors: data exfiltration, network activity, install-time execution.
Entrypoint: index.js (install-hook: node index.js)
Exfil: hyfqmkrlwsglkwqyfkfbp9n8ha4ywa6s3.oast.fun (custom-c2, recovery: plaintext in index.js)
Payload: index.js
Key findings:
- OAST/Interactsh Exfiltration in index.js: ".oast.fun"
- Publisher Has Other Malicious Packages
- Data Encoding for Exfiltration in index.js: "encodeURIComponent(key)}=${encodeURIComponent(val"
- Install Hook Executes Local JS File in package.json: ""preinstall": "node index.js""
IOCs:
- domains: hyfqmkrlwsglkwqyfkfbp9n8ha4ywa6s3.oast.fun
- payloadFileHash: 40f0a831f1fd91d7f83dd76ceda53b6fe022653fe1d2b21a748b7a52c56d18ca
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 | justsaying-docs | all (affected) | — |
Aliases
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