Is CVE-2026-110921 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-110921 being exploited in the wild.

How severe is CVE-2026-110921?

High severity, with a CVSS score of 8.8, published 15 October 2026.

Which products and versions are affected?

Google Chrome prior to 155.0.8059.84.

Is there a fix for CVE-2026-110921?

Yes: fixed in Chrome 155.0.8059.84 (Windows, Mac, Linux). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-110921 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-110921?

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.

CVE-2026-110921: Google Chrome use-after-free in V8

CVE-2026-110921 · Severity: high · CVSS 8.8 · Published 2026-10-15

Google Chrome's V8 JavaScript engine contains a use-after-free vulnerability that could allow an attacker to execute arbitrary code within the browser's security sandbox. An attacker could exploit this by crafting a malicious HTML page and tricking a user into visiting it, potentially compromising the user's browsing session and data.

Technologies: Google Chrome. Vendors: Google.

Quick answers

Is CVE-2026-110921 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-110921 being exploited in the wild.
How severe is CVE-2026-110921?: High severity, with a CVSS score of 8.8, published 15 October 2026.
Which products and versions are affected?: Google Chrome prior to 155.0.8059.84.
Is there a fix for CVE-2026-110921?: Yes: fixed in Chrome 155.0.8059.84 (Windows, Mac, Linux). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-110921 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-110921?: 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.

How to fix

Fixed in: Chrome 155.0.8059.84 (Windows, Mac, Linux)

Technical details

A use-after-free vulnerability in V8 (Chrome's JavaScript engine) allows remote code execution within the sandbox via a crafted HTML page. The vulnerability requires user interaction (visiting a malicious page) and does not break out of the sandbox, limiting the immediate scope of damage but still enabling script execution. The fix is available in Chrome 155.0.8059.84 and later.

Affected products

Google Chrome prior to 155.0.8059.84

Timeline

2026-10-15: disclosed
2026-10-15: patched

References

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