CVE-2026-3910: Google Chromium V8 memory corruption in JavaScript engine

CVE-2026-3910 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2026-03-13

A critical security flaw has been identified in the V8 engine used by Google Chrome and other Chromium-based browsers like Microsoft Edge and Opera. This engine is responsible for processing JavaScript on websites. An attacker can exploit this by tricking a user into visiting a malicious webpage, potentially allowing the attacker to run unauthorized code on the user's computer. This vulnerability is known to be actively exploited in the wild, posing a significant risk to data privacy and system integrity.

Technologies: Google Chrome, Google Chromium V8, Microsoft Edge, Opera Software Opera. Vendors: Google, Microsoft, Opera Software.

Quick answers

Is CVE-2026-3910 exploited in the wild?
Yes. CVE-2026-3910 is known to be exploited in the wild, first recorded on 13 March 2026. Treat it as urgent.
How severe is CVE-2026-3910?
Critical severity, with a CVSS score of 8.8, published 13 March 2026.
Which products and versions are affected?
Google Chrome prior to 146.0.7680.75.
Is there a fix for CVE-2026-3910?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-3910 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-3910?
Check whether you run Google Chrome, Google Chromium V8, Microsoft Edge or one of the others listed 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 memory corruption vulnerability exists in the V8 JavaScript engine within Google Chromium due to improper restriction of operations within memory buffer bounds (CWE-119/CWE-94). The flaw is triggered when the browser processes a specially crafted HTML page, allowing a remote, unauthenticated attacker to achieve arbitrary code execution within the browser's sandbox environment. While the execution is initially restricted to the sandbox, it provides a critical foothold for further exploitation. This vulnerability affects Google Chrome versions prior to 146.0.7680.75 and has been confirmed by CISA to be under active exploitation in the wild. Users are advised to update to the latest available browser versions immediately.

Affected products

  • Google Chrome prior to 146.0.7680.75
  • Microsoft Edge
  • Opera Software Opera

Timeline

  • 2026-03-13: disclosed
  • 2026-03-13: advisory
  • 2026-03-13: kev added: Added to CISA KEV catalog on the same day as disclosure.
  • 2026-03-13: exploited

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