VDB
GCVE-110-OSM-2026-7890
GCVE-110-OSM-2026-7890
Advisory PublishedCVSS 9.6/10
Suspected dependency confusion attack. Behaviors: data exfiltration, network activity, install-time execution.
ENTRY
postinstall.js (install-hook: node postinstall.js)
- Install Hook Executes Local JS File in package.json
DESTINATION
- custom-c2: http://130.49.177.51:18080/p/dc-20260627-yandex-geobase (primary, plaintext) in postinstall.js
- custom-c2: 130.49.177.51 (plaintext) in postinstall.js
EXFIL
- Data Encoding for Exfiltration in postinstall.js: "encodeURIComponent(pkg.name"
- Network Request in postinstall.js: "http.get("
- Suspicious Domain in postinstall.js: "http://130.49.177.51"
ADDITIONAL FINDINGS
- Publisher Has Other Malicious Packages
PAYLOAD FILES
postinstall.js
INDICATORS (IOCs)
- payloadFileHash: b17a9b1247236ef5ce0163600747d387f2bde35a2180ee54f2b0d74df44512ff
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 | express-bunker | all (affected) | — |
Aliases
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