Chrome 153 Patches Seventh Zero-Day of 2026
Google patches Chrome V8 zero-day CVE-2026-87491, exploited in the wild, marking the seventh exploited Chrome zero-day of 2026, in an update fixing 230 flaws.
Google released Chrome 153 with fixes for 230 vulnerabilities, including CVE-2026-87491, a medium-severity out-of-bounds write in the V8 JavaScript and WebAssembly engine that Google says is being exploited in the wild. It is the seventh zero-day patched in Chrome in 2026, following CVE-2026-2441, CVE-2026-3909, CVE-2026-3910, CVE-2026-5281, CVE-2026-11645 and CVE-2026-85046. The update also fixes five critical bugs (four in WebGL, one in Cast), 41 high-severity defects, and more than 180 medium/low issues, rolling out as 153.0.8010.36/.37 for Windows/macOS and 153.0.8010.36 for Linux.
- CVE-2026-87491 is an exploited out-of-bounds write in V8
- Fifth through seventh 2026 zero-days now total seven patched this year
- Five critical bugs fixed: four WebGL, one Cast use-after-free
- Reporter Jihyeon Jeong received a $2,500 bug bounty reward
- Only 35 of 230 flaws came from external researchers
- Vendors
- Organizations
- Compsec LabSeoul National University
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-11645 | Out-of-Bounds Read/Write in Google Chrome V8 Enables In-Sandbox Code Execution | 8.8 | 2% | KEVPoC | KEV |
| CVE-2026-2441 | Use-After-Free in Google Chromium CSS Rendering Exposes Chrome, Edge, Opera Users | 8.8 | 55% | KEVPoC | KEV |
| CVE-2026-3909 | Out-of-Bounds Write in Google Chrome's Skia Rendering Engine | 8.8 | 2% | KEV | KEV |
| CVE-2026-3910 | Out-of-Bounds Memory Flaw in Google Chrome V8 Allows Sandboxed Code Execution | 8.8 | 3% | KEV | KEV |
| CVE-2026-5281 | Use-After-Free in Google Chrome's Dawn (WebGPU) Component Enables Arbitrary Code Execution | 8.8 | 14% | KEV | KEV |
| CVE-2026-85046 | Actively Exploited V8 Type Confusion in Google Chrome (CVE-2026-85046) | 8.8 | 2% | KEVPoC ×6 | KEV |
| CVE-2026-87491 | Actively Exploited Out-of-Bounds Write in Google Chrome V8 | 8.8 | 4% | KEV | KEV |
From the original article
1 min read at securityweek.com
The Chrome update includes 230 security fixes, and users are advised to update their browsers as soon as possible. The post Chrome 153 Patches Seventh Zero-Day of 2026 appeared first on SecurityWeek.
By Ionut Arghire · securityweek.com
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