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Vulnerabilities & CVEs BleepingComputer 1 month ago

Hackers target exposed Vite dev servers to steal AWS, Azure secrets

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CyberNew Threat Research Desk
• Original Reporting: BleepingComputer
CyberNew Threat Intel Assessment
Assessed Severity: HIGH
Impacted Surface
Cloud & Distributed Infrastructure
Intelligence Sector
Vulnerabilities & CVEs

Analyst Takeaway

"A mass-scanning campaign targeting internet-exposed Vite development servers is attempting to steal cloud credentials and configurations from AWS and Azure deployments. The operation leverages an exploit for CVE-2026-39364, a high-severity vulnerability that allows bypassing file read/access controls in Vite versions 7.1.0 through 7.3.2, as well as the 8.x branch before 8.0.5. The flaw was..."

Recommended Defense & Mitigation

  • Access Review: Audit administrative roles, enforce phishing-resistant MFA, and review privilege escalations.
  • Credential Rotation: Rotate high-privilege service credentials and tokens associated with impacted services.
Curated & Verified by CyberNew Threat Intelligence Desk Standard Defense Framework (NIST / MITRE ATT&CK)

Hackers target exposed Vite dev servers to steal AWS, Azure secrets

A mass-scanning campaign targeting internet-exposed Vite development servers is attempting to steal cloud credentials and configurations from AWS and Azure deployments.

The operation leverages an exploit for CVE-2026-39364, a high-severity vulnerability that allows bypassing file read/access controls in Vite versions 7.1.0 through 7.3.2, as well as the 8.x branch before 8.0.5.

The flaw was disclosed on April 7 and allows an unauthenticated attacker to manipulate query parameters in an HTTP GET request to bypass security restrictions and retrieve files in plaintext from locations that should normally be out of their reach.

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Source Verification & Original Intelligence

This threat report was reviewed by CyberNew analysts and cross-referenced with primary security disclosures from BleepingComputer.

Primary Advisory →