# CVE-2026-102329: Google Chrome cross-site scripting in WebUI

Source: https://junglewise.ai/threats/cve-2026-102329-cross-site-scripting-in-webui-in-google-chrome-prior-to-154-0  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-29. Updated: 2026-09-29  
License: CC BY 4.0 with a link back

CVE-2026-102329 · Severity: info · Published 2026-09-29

Google Chrome's WebUI component contains a cross-site scripting vulnerability that could allow an attacker to bypass the browser's web origin policy protections. An attacker could craft a malicious HTML page that, when visited, breaks out of the sandbox and gains access to privileged browser pages. This could lead to theft of sensitive user data, session hijacking, or unauthorized actions within the browser.

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

## Quick answers

**Is CVE-2026-102329 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102329 being exploited in the wild.

**How severe is CVE-2026-102329?** Informational severity, published 29 September 2026.

**Which products and versions are affected?** Google Chrome prior to 154.0.8037.92; Google Chrome Os prior to 154.0.8037.92.

**Is there a fix for CVE-2026-102329?** A patch was published on 2026-09-29: Chrome 154.0.8037.92/.93 (Windows, Mac) and 154.0.8037.92 (Linux) released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-102329 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-102329?** Check whether you run Google Chrome or Google Chrome Os 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 cross-site scripting (XSS) flaw in Chrome's WebUI allows an attacker to bypass web origin policy enforcement through a crafted HTML page. The vulnerability permits unauthorized script execution in a privileged context, enabling access to restricted browser functionality and data. The flaw is addressed in Chrome 154.0.8037.92 and later; affected users should update immediately.

## Affected products

- Google Chrome prior to 154.0.8037.92
- Google Chrome OS prior to 154.0.8037.92

## Timeline

- 2026-09-29: disclosed: Stable channel update released with fix in version 154.0.8037.92
- 2026-09-29: patched: Chrome 154.0.8037.92/.93 (Windows, Mac) and 154.0.8037.92 (Linux) released

## References

- [https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01807488085.html](https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01807488085.html)
- [https://issues.chromium.org/issues/563297615](https://issues.chromium.org/issues/563297615)

## Related threats

- [Google Chrome out of bounds read in Skia](https://junglewise.ai/threats/cve-2026-126922-out-of-bounds-read-in-skia-in-google-chrome-prior-to-157-0-8103)
- [Google Chrome use after free in Accessibility](https://junglewise.ai/threats/cve-2026-126921-use-after-free-in-accessibility-in-google-chrome-prior-to-157-0)
- [Google Chrome information leak in Skia](https://junglewise.ai/threats/cve-2026-126920-information-leak-in-skia-in-google-chrome-prior-to-157-0-8103-78)
- [Google Chrome use-after-free in BrowserTag](https://junglewise.ai/threats/cve-2026-126919-use-after-free-in-browsertag-in-google-chrome-prior-to-157-0)
- [Google Chrome use-after-free in Layout](https://junglewise.ai/threats/cve-2026-126918-use-after-free-in-layout-in-google-chrome-prior-to-157-0-8103-78)