Google Chrome: Improper input validation in Media allows sandbox code execution
Summary
Improper input validation in the Media component of Google Chrome before 156.0.8078.47 can be exploited by a remote attacker. A user who opens a crafted HTML page may allow the attacker to potentially execute arbitrary code inside the browser sandbox. The CVSS base score is 8.8 (High); the attack requires user interaction, such as visiting a malicious or compromised website.
Affected
- Google Chrome desktop builds prior to 156.0.8078.47
- Chromium-based browsers that ingest the Chromium fix are affected separately (per vendor-specific advisories)
Fixed in
- Google Chrome 156.0.8078.47 for Linux and Android
- Google Chrome 156.0.8078.47 or 156.0.8078.48 for Windows and macOS
- Exact build list: check the Chrome Releases post (not verified in this analysis)
Workaround
None documented. Update Chrome and restart the browser.
Exploitation
- No evidence of exploitation in the wild found.
- No public proof of concept found for this CVE.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update Chrome to 156.0.8078.47 or later (156.0.8078.48 on Windows and macOS) on all endpoints, including Linux and snap-based installs.
- Verify the installed version at chrome://version and restart the browser so the update takes effect.
- Check that automatic updates are enabled across the fleet.
- Reinforce user awareness against suspicious links and untrusted websites.
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 560476932 issues.chromium.org
- Ubuntu CVE tracker: CVE-2026-113120 ubuntu.com
- StriX.ai: CVE-2026-113120 www.strix.ai
- NVD record via Vulners vulners.com
- HKCERT bulletin: Microsoft Edge multiple vulnerabilities www.hkcert.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 31 Oct 2026, 13:47.
Original description (NVD)
Improper input validation in Media 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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