Critical

How legitimate cloud platforms enable phishers to bypass MFA

Securelist

August 4, 2026 at 12:00 PM

Actively Exploited

Overview

A recent analysis highlights how attackers are exploiting cloud services to bypass multi-factor authentication (MFA) using a technique called Account in the Middle (AitM). This involves leveraging service workers and platforms like Ultraviolet to host phishing sites on legitimate cloud infrastructure, making them harder to detect. Major platforms identified include Cloudflare Workers, Vercel, Netlify, GitHub Pages, and IPFS, which are being misused to create convincing phishing pages. This tactic poses a significant risk to users who might unknowingly provide their credentials, as it undermines the security measures intended to protect them. Companies utilizing these services should be aware of this vulnerability and take steps to secure their users against such phishing schemes.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Cloudflare Workers, Vercel, Netlify, GitHub Pages, IPFS
Action Required: Users should enable additional security measures beyond MFA, such as monitoring for unusual account activity and employing anti-phishing training.
Timeline: Newly disclosed

Original Article Summary

We cover a cloud-based AitM attack scenario leveraging service workers and Ultraviolet, and provide detailed phishing hosting statistics across platforms like Cloudflare Workers, Vercel, Netlify, GitHub Pages, and IPFS.

Impact

Cloudflare Workers, Vercel, Netlify, GitHub Pages, IPFS

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Users should enable additional security measures beyond MFA, such as monitoring for unusual account activity and employing anti-phishing training.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Phishing, Vulnerability.

Read Original Article

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