Google Issues Chrome 153 Security Update Addressing 42 Vulnerabilities Including Three Critical Flaws
Google has released a comprehensive security update for its Chrome browser, version 153, addressing a total of 42 vulnerabilities. The update, issued on September 15, 2026, includes three issues rated as Critical that could lead to remote code execution or memory corruption if exploited.
The company distributed the patched builds Chrome 153.0.8010.48 and 153.0.8010.47 for Windows and macOS, along with 153.0.8010.47 for Linux. The rollout will occur gradually over the coming days and weeks.
Critical Vulnerabilities Fixed
The three critical flaws resolved in this update are:
- CVE-2026-91726 — Out-of-bounds read vulnerability in WebGL
- CVE-2026-91721 — Use-after-free issue in Internals
- CVE-2026-91749 — Use-after-free vulnerability in Workers
These issues received the highest severity rating due to their potential impact on browser stability and security.
High-Severity Issues Addressed
In addition, Google fixed 28 high-severity vulnerabilities. Notable examples include an integer overflow in the V8 JavaScript engine (CVE-2026-91728), a use-after-free in V8 (CVE-2026-91745), an out-of-bounds write in ServiceWorker (CVE-2026-91711), and a type confusion flaw (CVE-2026-91715).
Other components such as Skia, DOM, PDF, Core, and Input received fixes for use-after-free conditions, race conditions, authorization bypasses, uninitialized resources, and type confusion errors. Ten medium-severity and one low-severity issue were also patched.
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