Google Chrome: Improper input validation in Browser component
Summary
Improper input validation in the Browser component of Google Chrome before 156.0.8078.47 allows a remote attacker to potentially execute arbitrary code inside the renderer sandbox. Exploitation requires that a user visits a crafted HTML page. Chromium-based browsers such as Microsoft Edge use the same Chromium code and are therefore also affected. The Chromium security severity is rated Medium.
Affected
- Google Chrome prior to 156.0.8078.47 (Windows, Mac, Linux)
- Chromium-based browsers that have not yet integrated the fix, such as Microsoft Edge
Fixed in
- Google Chrome 156.0.8078.47 or later 156 stable build (vendor release notes; exact Windows and Mac builds not verified)
- Linux distributions: check the distribution's advisory for the Chromium package; Ubuntu lists its chromium-browser package as not affected and refers to the Chromium snap
Workaround
Unknown. No workaround found; updating the browser is the fix.
Exploitation
- No in-the-wild exploitation reported in the sources reviewed.
- No public proof of concept found.
- CISA SSVC assessment: exploitation none, not automatable, total technical impact. CISA KEV status not verified.
Our recommendation
- Update all Chrome and Edge installations to the latest 156 stable build, at least 156.0.8078.47.
- Restart the browser after the update so the new version is active.
- Check devices that are not restarted or are managed separately.
- Monitor the Chromium bug entry and CISA KEV for changes.
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 553153823 issues.chromium.org
- NVD record via Vulners: CVE-2026-113230 vulners.com
- Ubuntu security: CVE-2026-113230 ubuntu.com
- Chrome 156 stable update for Windows, Mac and Linux (browserhow) browserhow.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, 12:47.
Original description (NVD)
Improper input validation in Browser in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
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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