Google Chrome: Improper input validation in Date allows code execution
Summary
Google Chrome versions before 156.0.8078.47 contain an improper input validation flaw in the Date component. A remote attacker can use a crafted HTML page to potentially execute arbitrary code outside the browser sandbox. The attack requires that a user visits the malicious page, and the CVSS base score is 9.6 (Critical).
Affected
- Google Chrome desktop prior to 156.0.8078.47
- Chromium-based browsers that include the same flaw may also be affected (not verified)
Fixed in
- Google Chrome 156.0.8078.47 or later (vendor advisory of 20 October 2026)
Workaround
- Unknown. No workaround is documented. Apply the update.
Exploitation
- Public proof of concept: none found. Status: unknown.
- Exploited in the wild: no evidence found. A third-party tracker lists it as not in CISA KEV; the CISA KEV catalogue was not checked directly.
- CISA SSVC assessment: exploitation none, not automatable, total technical impact.
Our recommendation
- Update all Chrome desktop installations to 156.0.8078.47 or later, and check that the installed version is current.
- Make sure users restart Chrome after the update, because the fix applies only after a restart.
- Update Chromium-based browsers and Linux systems with Chromium as well.
- Monitor vendor advisories for further updates.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Chrome Releases: Stable Channel Update for Desktop (20 Oct 2026) chromereleases.googleblog.com
- Chromium issue tracker entry issues.chromium.org
- Vulners NVD record for CVE-2026-113020 vulners.com
- HKCERT security bulletin for Google Chrome www.hkcert.org
- GBHackers: Chrome 156 fixes security vulnerabilities gbhackers.com
- Sandbanks Digital: Chrome security update October 2026 sandbanksdigital.com
- Vulners MSCVE record for CVE-2026-113020 vulners.com
- Wikipedia: Google Chrome en.wikipedia.org
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 30 Oct 2026, 22:41.
Original description (NVD)
Improper input validation in Date in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside 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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