Google Chrome: Out-of-bounds read in Focus component
Summary
Google Chrome desktop builds before 156.0.8078.47 contain an out-of-bounds read in the Focus component. A remote attacker can exploit it by luring a user to a crafted HTML page, which may allow arbitrary code execution inside the browser sandbox. User interaction is required, but no privileges are needed. The CNA rates the issue High (CVSS 8.8).
Affected
- Google Chrome desktop builds prior to 156.0.8078.47 (CVE record and release reporting)
- Windows and macOS: 156.0.8078.47 or .48 per secondary reporting, not verified against the vendor page
- Android: reported as affected before 156.0.8078.47, not verified
Fixed in
- Google Chrome 156.0.8078.47 (Linux)
- Google Chrome 156.0.8078.47 or 156.0.8078.48 (Windows, macOS; verify against the vendor advisory)
Workaround
Unknown. No vendor workaround is known; apply the update.
Exploitation
- No evidence of in-the-wild exploitation found.
- No public proof of concept found.
- CISA KEV status not verified directly.
Our recommendation
- Update Google Chrome to 156.0.8078.47 or later on all endpoints, and check Chromium-based browsers and Microsoft Edge against their vendors' advisories.
- Restart the browser after the update so the new version is active.
- Verify installed versions with policy or inventory tooling.
- Deploy this fix as part of the Chrome 156 batch update.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Chrome Releases: Stable Channel Update for Desktop chromereleases.googleblog.com
- Chromium issue tracker entry issues.chromium.org
- Microsoft Security Update Guide: CVE-2026-113095 msrc.microsoft.com
- Vulners CVE record CVE-2026-113095 vulners.com
- Ubuntu security notice CVE-2026-113095 ubuntu.com
- Strix CVE record CVE-2026-113095 www.strix.ai
- Cybersecurity News: Chrome security update fixing 353 flaws cybersecuritynews.com
- Windows Forum: Chrome 156 security update windowsforum.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 14:05.
Original description (NVD)
Out of bounds read in Focus in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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