Discovery of a glitch that could lock iPhones or freeze Messages

Buzz

Ngày cập nhật gần nhất: 15/4/2026

A software developer testing iPhone's internal software has uncovered a flaw in the operating system that could result in the Message app consistently freezing if users receive a link sent from the Github website. The alarming aspect is that even without clicking on the link, users' devices are still affected.

With experts constantly seeking and addressing iOS glitches on iPhones and iPads to enhance users' experiences with this top-notch device. Recently, they identified a flaw that could lock iPhones and freeze Messages, following issues with the iOS 11.2.2 upgrade previously compiled by Mytour.vn.

Abraham Masri is the individual who discovered this severe flaw, naming it 'chaiOS.' He found the flaw by inserting hundreds of thousands of characters into the meta-data of a web page, surpassing the character limit on iOS. When the link on the page is sent, iMessage generates a preview on the receiving device, and the issues start from there.

The Twitter user with the handle @aaronp613, who assisted Masri in testing the vulnerability on other Apple devices, responded to Buzzfeed, saying: 'The device will freeze within minutes. Then it will restart the screen.' The app won't load any other messages and will consistently hang.

This flaw has been tested on iPhone X and iPhone 5S devices, affecting all iOS versions from iOS 10 to iOS 11.2.5 beta 5, but has not been tested on iOS 11.2.5 beta 6 released today. Masri also mentioned that the vulnerability affects macOS devices.

Masri advises users to promptly delete any links received from unfamiliar users. Users can also block the Github domain on the Safari browser, although this method won't work if someone has posted the code on a different domain.

On Apple's part, there has been no response to users regarding this vulnerability. However, the severity of chaiOS is quite high, and Apple is likely to address the vulnerability in the earliest security update.

https://Mytour.vn/phat-hien-loi-co-the-khoa-iphone-treo-messages-22290n.aspx
Prior to this, Google disclosed an iOS vulnerability that could jailbreak iOS 11. With this information, many are eagerly awaiting the opportunity to perform Jailbreak iOS 11.2.2. For more details on this event, you can review the article Google discloses iOS vulnerability to understand more about this serious security flaw.

Frequently Asked Questions

What is the flaw discovered in iPhone's operating system related to the Message app?

The flaw, named 'chaiOS' by developer Abraham Masri, causes the Message app to freeze when users receive a link from Github, affecting devices without clicking the link.

How does the chaiOS vulnerability impact different iOS devices?

chaiOS affects all iOS versions from iOS 10 to iOS 11.2.5 beta 5, causing devices like iPhone X and iPhone 5S to freeze and restart upon receiving the problematic link.

What precautions can users take to protect themselves from the chaiOS vulnerability?

Users should delete links from unfamiliar senders and can block the Github domain on Safari. However, blocking may not work for links posted on other domains.

Has Apple responded to the discovery of the chaiOS vulnerability?

No, Apple has not yet responded to the chaiOS vulnerability, but the severity of the issue suggests that a security update may be forthcoming to address it.

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