We use optional cookies to improve your experience on our websites, such as through social media connections, and to display personalized advertising based on your online activity. If you reject optional cookies, only cookies necessary to provide you the services will be used. You may change your selection by clicking “Manage Cookies” at the bottom of the page. Privacy Statement Third-Party Cookies Accept Reject Manage cookies MSRC Customer Guidance Security Update Guide Vulnerabilities CVE-2026-8018 Chromium: CVE-2026-8018 Insufficient policy enforcement in DevTools New On this page CVE-2026-8018 Subscribe RSS PowerShell API CSAF Security Vulnerability Released: May 7, 2026 Assigning CNA Chrome CVE.org link CVE-2026-8018 Executive Summary This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information. FAQ Why is this Chrome CVE included in the Security Update Guide? The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. How can I see the version of the browser? In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window Click on Help and Feedback Click on About Microsoft Edge Acknowledgements Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgements for more information. Security Updates To determine the support lifecycle for your software, see the Microsoft Support Lifecycle. Release date Descending Edit columns Download Filters Product Family Max Severity Impact Platform Clear Release date Product Platform Impact Max Severity Article Download Build Number Assigning CNA Customer Action Required Loading... Disclaimer The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. Revisions version revisionDate description 1.0 May 7, 2026 Information published. How satisfied are you with the MSRC Security Update Guide? Rating Broken Bad Below average Average Great! Your Privacy Choices Consumer Health Privacy
The vulnerability CVE-2026-8018 is an insufficient policy enforcement flaw within the Chromium DevTools. This vulnerability impacts Microsoft Edge (Chromium-based) as it consumes the upstream Chromium codebase. The article confirms that the latest version of Microsoft Edge has been updated to address this issue but does not provide specific affected or fixed version numbers, nor a CVSS score or workaround.