# CVE-2026-17839: Google Chrome for iOS UI spoofing via crafted HTML page

Source: https://junglewise.ai/threats/cve-2026-17839-google-chrome-for-ios-ui-spoofing-via-crafted-html-page  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-30. Updated: 2026-07-30  
License: CC BY 4.0 with a link back

CVE-2026-17839 · Severity: info · Published 2026-07-30

A vulnerability in Google Chrome for iOS could allow a malicious website to spoof parts of the browser's user interface. This could be used to trick users into believing they are on a legitimate website or to hide security warnings, potentially leading to credential theft or other phishing attacks. Users should update their Chrome app on iOS to the latest version to mitigate this risk.

Technologies: [Google Chrome](https://junglewise.ai/threats/technologies/chrome). Vendors: [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2026-17839 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-17839 being exploited in the wild.

**How severe is CVE-2026-17839?** Informational severity, published 30 July 2026.

**Which products and versions are affected?** Google Chrome prior to 151.0.7922.72.

**Is there a fix for CVE-2026-17839?** A patch was published on 2026-07-29: Stable channel update released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-17839 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-17839?** 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

An inappropriate implementation vulnerability exists in Google Chrome for iOS prior to version 151.0.7922.72. A remote attacker can exploit this by enticing a user to visit a specially crafted HTML page. Successful exploitation allows the attacker to perform user interface (UI) spoofing, which can be leveraged to misrepresent website identity or browser state. The vulnerability is categorized by Chromium as Medium severity. A fix is available in version 151.0.7922.72 and later.

## Affected products

- Google Chrome for iOS prior to 151.0.7922.72

## Timeline

- 2026-07-29: patched: Stable channel update released
- 2026-07-30: disclosed: NVD publication date

## References

- [https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html](https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html)
- [https://issues.chromium.org/issues/518080978](https://issues.chromium.org/issues/518080978)

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