Google Chrome for Android: Improper input validation in UI
Summary
Improper input validation in the user interface of Google Chrome for Android before 156.0.8078.47 can be abused by a remote attacker. A crafted HTML page that a user opens could potentially lead to arbitrary code execution inside the browser sandbox. No login is required, but user interaction is needed. Google rates the issue Low, while the CNA scores it 8.8 (CVSS 3.1), so the impact should be checked against the vendor advisory.
Affected
- Google Chrome for Android before 156.0.8078.47
- Other platforms are not covered by this entry (the CNA record lists Google Chrome generally)
Fixed in
- Chrome for Android 156.0.8078.47 (secondary sources, not confirmed by the vendor page)
- Newer Chrome 156 builds (for example 156.0.8078.79 or later) are reported but not verified for this CVE
Workaround
- Not applicable: a fixed build is available. Update Chrome through Google Play.
Exploitation
- No evidence of active exploitation found.
- No public proof of concept found.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
- Google rates the issue Low.
- A VulDB exploit price estimate (USD 5k to 25k) is a market estimate, not evidence of exploitation.
Our recommendation
- Confirm that Chrome for Android is at 156.0.8078.47 or later, preferably the newest Chrome 156 build, on all managed devices.
- Check Google Play update status on BYOD phones and tablets, which are the main risk.
- Make sure Chrome updates are enabled and automatic.
- Review the Google advisory and Chromium issue 553274389 when they are readable.
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 553274389 issues.chromium.org
- VulDB entry 424385 vuldb.com
- Strix CVE summary www.strix.ai
- Windows Forum: Chrome 156 security update windowsforum.com
- Chrome Geek: Chrome 156 security update (21 fixes) www.chromegeek.com
- Wikipedia: Google Chrome en.wikipedia.org
- The Hans India: Chrome 156 update www.thehansindia.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, 13:26.
Original description (NVD)
Improper input validation in UI in Google Chrome on on Android 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: Low)
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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