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Critical Supply Chain Vulnerability Exposed in nDiligence Study

Critical Supply Chain Vulnerability Exposed in nDiligence Study

First seen 12 Nov 2026, 15:50 UTC • •

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ThreatCluster AI
ThreatCluster •November 12, 2026 at 16:50 UTC
  • •All 50 software types studied were found vulnerable, with 46 rated Critical or High risk.
  • •Attackers can exploit a single supplier's code to manipulate user interfaces without detection.
  • •The vulnerability can lead to disinformation and unauthorized actions in various applications.

nDiligence, Inc. released a four-year study revealing a critical supply chain vulnerability affecting all 50 software and device types examined. The research highlights that 46 of these were rated as Critical or High risk. The vulnerability arises from runtime client-side rendering, allowing attackers to exploit a single supplier to manipulate what users see on their screens. This manipulation can lead to disinformation and unauthorized actions without detection. The study's findings were previously shared with governments for over two years before public disclosure. Notably, an incident involving Polyfill.io in February 2024 demonstrated how such vulnerabilities can persist undetected. The research emphasizes the urgent need for the cybersecurity community to address this issue to protect software integrity across various sectors.

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Timeline

2024-02-01
Polyfill.io domain sold
The domain behind Polyfill.io was sold to a sanctioned company, leading to altered code running undetected for months.
Hackread
2024-06-01
Vulnerability discovered
Researchers identified the altered code on Polyfill.io that had affected over 100,000 websites.
Hackread

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Common questions

What types of software are affected?
The study examined 50 types, including web browsers, mobile apps, medical devices, and industrial control systems.
How can this vulnerability be exploited?
Attackers can manipulate the code loaded on users' devices, altering what is displayed and capturing user input.
What steps should organizations take?
Organizations should review their software supply chains and implement monitoring to detect unauthorized changes.