CVE-2026-85046

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)

Score

CVSS 3.1 8.8 High

Status

Analyzed - chrome-cve-admin@google.com

Published

2026-09-03

Last modified

2026-09-21

Known exploited (CISA KEV)

since 2026-09-04, action due 2026-09-18: 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.

Weaknesses

CWE-843

Affected products

• Chrome (Google)
• V8 (Google)

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