Chrome 149 Update Patches 28 Vulnerabilities

Google on Thursday rolled out a Chrome 149 update that resolves 28 critical and high-severity vulnerabilities.

The update patches five critical-severity bugs: use-after-free issues in Core, DigitalCredentials, and WebMIDI, an insufficient validation of untrusted input flaw in Accessibility, and a heap buffer overflow defect in GPU.

The remaining 23 vulnerabilities are high-severity flaws: nine use-after-free, four insufficient validation of untrusted input, three inappropriate implementation, two insufficient policy enforcement, two out-of-bounds read, an out-of-bounds write, a race condition, and a heap buffer overflow.

A dozen of them, including three critical and nine high-severity defects, are use-after-free issues, a type of memory safety bug that could be exploited for remote code execution (RCE), data corruption, or denial-of-service.

In Chrome, use-after-free vulnerabilities could be exploited for sandbox escape, if combined with security defects in the operating system or in a privileged part of the browser.

Google has been battling use-after-free bugs in Chrome for years: it introduced MiraclePtr in 2022 to make their exploitation more difficult and is transitioning Chrome’s codebases to Rust to eliminate this type of security defect entirely.

The number of use-after-free flaws resolved in Chrome has increased over the past couple of months, amid a spike in vulnerabilities surfaced in Chrome, likely fueled by the use of AI.

Since the beginning of the year, Google patched over 700 bugs in Chrome, more than five times the total resolved in 2025. Five of them have been exploited as zero-days.

The fresh Chrome 149 release follows the trend: 27 of the resolved security defects are marked as “reported by Google”, and only one as reported by an independent researcher.

Google makes no mention of any of these vulnerabilities being exploited in the wild.

The latest Chrome update is rolling out as versions 149.0.7827.114/.115 for Windows and macOS, and as version 149.0.7827.114 for Linux.

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