CVE-2026-9956: Google Chrome for iOS use after free in UI gestures

CVE-2026-9956 · Severity: info · CVSS 8.8 · Published 2026-05-28

A security vulnerability in Google Chrome for iOS could allow a remote attacker to execute unauthorized code on a user's device. To exploit this, an attacker would need to trick a user into visiting a malicious website and performing specific touch or interface gestures. Successful exploitation could lead to a full compromise of the browser session and potential access to sensitive user data.

Technologies: Google Chrome. Vendors: Google.

Quick answers

Is CVE-2026-9956 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-9956 being exploited in the wild.
How severe is CVE-2026-9956?
Informational severity, with a CVSS score of 8.8, published 28 May 2026.
Which products and versions are affected?
Google Chrome prior to 148.0.7778.216.
Is there a fix for CVE-2026-9956?
A patch was published on 2026-05-27: Fixed in version 148.0.7778.216 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-9956 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-9956?
Check whether you run Google Chrome at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A use-after-free (UAF) vulnerability exists in the iOS implementation of Google Chrome (CWE-416). The flaw is triggered when a user is convinced to perform specific UI gestures while viewing a specially crafted HTML page. This memory corruption issue allows a remote attacker to achieve arbitrary code execution within the context of the browser process. The vulnerability was addressed in version 148.0.7778.216. While the advisory lists 'info' severity, Chromium's internal assessment classifies this as High severity.

Affected products

  • Google Chrome for iOS prior to 148.0.7778.216

Timeline

  • 2026-05-27: patched: Fixed in version 148.0.7778.216
  • 2026-05-28: disclosed

References

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