VDB
GCVE-110-OSM-2026-5659
GCVE-110-OSM-2026-5659
Advisory PublishedCVSS 8.8/10
Malicious package detected. Behaviors: code execution, obfuscated code, install-time execution.
Entrypoint: build-helper.js (install-hook: node build-helper.js)
Payload: index.js
Key findings:
- Dynamic Base64 Decoding in index.js: "atob(Z)"
- Obfuscation: function to array replacements in index.js
- Obfuscation Pattern: stringArrayAccess in index.js: "[G][0]"
- Install Hook Executes Local JS File in package.json: ""postinstall": "node build-helper.js""
IOCs:
- payloadFileHash: 8e3f7761b67a15ca40e6ab7be497c588e465b8b6437210eb202e6d34da9c0589
Weaknesses (CWE)
CWE-506Embedded Malicious Code
Risk Scores
CVSS 3.1
8.8/10
High · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| unknown | progerss-cli | all (affected) | — |
Aliases
Browse GCVE Records
73,685 records in the GCVE database · Updated July 18, 2026
No matching records found.
Explore Further
Investigate this vulnerability in the interactive console or download the raw GCVE record.