Google Chrome for Android: Improper input validation in UI
Summary
Google Chrome for Android before 156.0.8078.73 contains an improper input validation flaw in the UI component (CWE-20). A remote attacker can use a crafted HTML page to potentially execute arbitrary code inside the browser sandbox. Exploitation requires that a user visits the malicious page, and the CVSS score is 8.8 (High).
Affected
- Google Chrome for Android before 156.0.8078.73 (per the CVE record)
Fixed in
- Chrome for Android 156.0.8078.73 (vendor fix per the CVE references)
- Newer build 156.0.8078.79 reported by APKMirror (secondary source, not verified against vendor)
Workaround
- Unknown. No workaround is documented in the sources; updating is the remedy.
Exploitation
- No exploitation or public exploit code reported as of late October 2026.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
- EPSS: 0.27 % (percentile 20).
Our recommendation
- Update Chrome for Android to the newest stable build through Google Play or your MDM.
- Prioritise Android phones and tablets used for browsing.
- Check that managed devices report a Chrome version of 156.0.8078.73 or later.
- Monitor for exploitation reports and remind users to avoid untrusted links.
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 issues.chromium.org
- CVE record mirror (threatint) cve.threatint.com
- Radar Offseq threat entry radar.offseq.com
- APKMirror: Chrome 156.0.8078.79 www.apkmirror.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, 10:05.
Original description (NVD)
Improper input validation in UI in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker to potentially 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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