CVE-2026-85046: Google Chromium V8 Type Confusion Vulnerability
Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Published Sep 3, 2026 · Updated Sep 21, 2026
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Advisory details
From the National Vulnerability Database. This product uses the NVD API but is not endorsed or certified by the NVD.
Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
References
- https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html
- https://issues.chromium.org/issues/542403045
- https://github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea9/v8/When_Sorting_Leads_To_Confusion.md
- https://github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67
- https://news.ycombinator.com/item?id=49570669
- https://serotav.github.io/Writeups/v8/when-sorting-leads-to-confusion/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85046
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology
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