WebKit, Apple’s engine that powers all web browsers in its ecosystem, contained multiple flaws that helped leak the IP addresses of users who paid to keep them hidden.
This is according to security researchers Talal Haj Bakry and Tommy Mysk who noted they had found “three WebKit features that bypass the proxy configuration and send traffic directly from the device instead,” they wrote.
“DNS prefetching resolves hostnames through the device’s normal DNS path, which reveals the user’s real DNS servers instead of the proxy’s. Available since iOS 26.0; WebAuthn Related Origin Requests make the operating system’s credential service fetch a validation file directly from the device. This exposes the device’s real IP address. Available since iOS 18.0; WebTransport opens a direct HTTP/3 connection and bypasses the proxy, which also exposes the device’s real IP address. Available since iOS 26.4,” the researchers said.
Read more…
Source: TechRadar news
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- FBI: Cyber Criminal Groups UNC6040 and UNC6395 Compromising Salesforce Instances for Data Theft and Extortion
September 12, 2025
The Federal Bureau of Investigation (FBI) is releasing this FLASH to disseminate Indicators of Compromise (IOCs) associated with recent malicious cyber activities by cyber criminal groups UNC6040 and UNC6395, responsible for a rising number of data theft and extortion intrusions. Both groups have recently been observed targeting organizations’ Salesforce platforms via different initial access mechanisms. The ...
- Patch Tuesday – September 2025
September 10, 2025
Microsoft is addressing 176 vulnerabilities today, which seems like a lot, and it is. Curiously, Microsoft’s own Security Update Guide (SUG) for September 2025 Patch Tuesday only lists 86 vulns, and that’s because the SUG doesn’t include a large number of open source software (OSS) fixes published today as part of updates for Azure Linux ...
- CMS Sitecore patches critical zero-day flaw
September 5, 2025
Popular CMS platform Sitecore has patched a critical zero-day vulnerability found to be being abused in cyberattacks. Security researchers from Mandiant observed threat actors exploiting a zero-day flaw to deploy malware, as well as other legitimate software. The flaw stemmed from the use of sample ASP.NET machine keys published in old deployment guides (pre-2017), and is ...
- Palo Alto Networks becomes the latest to confirm it was hit by Salesloft Drift attack
September 3, 2025
The Salesloft Drift incident is quickly turning into the next MOVEit MFT fiasco, as yet another company confirms losing sensitive data in the third-party attack. This time around, it is the American multinational cybersecurity company Palo Alto Networks that confirmed losing customer data and support cases information in the breach. It all began with the sales ...
- Google warns Gmail users to change passwords after data breach
September 3, 2025
Google is warning about 2.5 billion Gmail users to change their passwords or install a passkey following a data breach that has led to a surge in “phishing” email attacks. The data breach that prompted the warning reportedly happened at a Salesforce database that Google uses internally. The compromised information included basic business contact information such ...
- Model Namespace Reuse: An AI Supply-Chain Attack Exploiting Model Name Trust
September 3, 2025
Palo Alto Unit 42 research uncovered a fundamental flaw in the AI supply chain that allows attackers to gain Remote Code Execution (RCE) and additional capabilities on major platforms like Microsoft’s Azure AI Foundry, Google’s Vertex AI and thousands of open-source projects. We refer to this issue as Model Namespace Reuse. Hugging Face is a platform ...

