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Google Releases Chrome 156 Fixing 353 Vulnerabilities Including Six Critical Issues

Google has released Chrome 156 for Windows, macOS, and Linux, addressing a total of 353 vulnerabilities tracked via CVE identifiers. Six of these flaws received the highest Critical severity rating, primarily involving memory corruption in components such as Skia, Accessibility, CSS, Paint, and WebRTC. One additional Critical issue is a Use-After-Free vulnerability in Accessibility reported by Anthropic researcher Xinyang Ge with assistance from Claude. Sixty-one High severity vulnerabilities were also fixed across V8, ANGLE, WebRTC and other modules, covering memory corruption, use-after-free conditions, and input validation problems. The update further resolves 197 Medium and 89 Low severity issues. Patches are being deployed gradually over the coming days and weeks to all supported platforms.

Security NEXTTranslated from Japanese

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Google has released the latest version of its web browser, Chrome 156, which addresses a total of 353 vulnerabilities tracked under CVE identifiers. Six of these issues are rated Critical, the highest severity level assigned by the company.

The update was published on October 20, 2026, delivering Chrome 156.0.8078.48 and 156.0.8078.47 for Windows and macOS, along with 156.0.8078.47 for Linux. Five of the Critical flaws involve memory corruption vulnerabilities located in the Skia, Accessibility, CSS, Paint, and WebRTC components. These have been assigned the identifiers CVE-2026-113341, CVE-2026-113279, CVE-2026-113072, CVE-2026-113280, and CVE-2026-113303.

The remaining Critical issue, CVE-2026-113271, is a Use-After-Free vulnerability discovered in the Accessibility component. It was reported by Anthropic researcher Xinyang Ge with assistance from Claude. The WebRTC flaw CVE-2026-113303 was reported by OpenAI Codex Security.

Additional severity levels

Sixty-one vulnerabilities were rated High. These affect components including V8, ANGLE, and WebRTC, and include memory corruption, use-after-free conditions, and insufficient input validation. The update also resolves 197 Medium and 89 Low severity issues.

Google plans to roll out the patches gradually over the next several days to weeks across all supported platforms.

AnthropicWebRTCChromeSkiaANGLECVE-2026-113341
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