VDB

GCVE-110-OSM-2026-7502

GCVE-110-OSM-2026-7502
Advisory PublishedCVSS 5.4/10
Vulnetix · Advisory published July 8, 2026
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. ENTRY callback.js (install-hook: node callback.js || true) - Install Hook Executes Local JS File in package.json DESTINATION - custom-c2: pbnuwvwzmktaetcsjyyjlhncsf843r5a5.oast.fun (primary, plaintext) in callback.js EXFIL - OAST/Interactsh Exfiltration in callback.js: ".oast.fun" - System Information Exfiltration in callback.js: "os.hostname().replace(/[^a-zA-Z0-9-]/g,'').slice(0,20); const u = os.userInfo()...." - Network Request in callback.js: "https.request(" - System Information Collection in callback.js: "os.userInfo()" - Suspicious Domain in callback.js: "oast.fun" PAYLOAD FILES callback.js INDICATORS (IOCs) - urls: https://hackerone.com/tiktok - domains: hackerone.com - payloadFileHash: 067f8f30d289087f6914c1ac685d24391b542844c06dadfd210b54ac202b3d66

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

VendorProductVersionsPlatforms
unknownbytefaas-sdkall (affected)

References

advisory
vendor

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