Google Chrome: Use-after-free in DOM allows code execution in sandbox
Summary
A use-after-free flaw in the DOM component of Google Chrome desktop allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker needs a victim to visit a crafted HTML page, so user interaction is required and no login is needed. Chromium rates the flaw Medium and CVSS 3.1 is 8.8; code execution inside the sandbox alone does not normally give full system control.
Affected
- Google Chrome desktop for Linux before 156.0.8078.47 (secondary reports)
- Google Chrome desktop for Windows and macOS before 156.0.8078.47 (some reports cite 156.0.8078.48; the official CVE record lists the version range inconsistently)
- Microsoft Edge (Chromium-based) before 156.0.4314.42 (HKCERT)
Fixed in
- Google Chrome 156.0.8078.47 or later (Linux); 156.0.8078.47 or later, preferably 156.0.8078.48 or later (Windows, macOS)
- Microsoft Edge 156.0.4314.42 or later
- Ubuntu: chromium-browser is listed as not affected; check the Chromium snap instead
Workaround
Unknown. No vendor workaround found.
- Restart the browser after updating, as old browser processes may still run.
Exploitation
- No evidence of in-the-wild exploitation found (secondary source only).
- No public proof of concept found.
- CISA KEV status: unknown.
- CISA SSVC assessment: exploitation none, automatable no, technical impact total.
Our recommendation
- Update all Chrome and Edge installations to 156.0.8078.47 or later, preferably the latest Chrome 156 stable build.
- Restart browsers after the update.
- Confirm the update status on all managed devices via update reports, including unmanaged devices and long-running sessions.
- Check Chromium-based browsers and the Chromium snap on Ubuntu systems.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Google Chrome Releases: Stable Channel Update for Desktop chromereleases.googleblog.com
- Chromium issue tracker 553845833 issues.chromium.org
- NVD record mirror (Vulners) vulners.com
- Ubuntu security CVE-2026-113187 ubuntu.com
- HKCERT security bulletin: Microsoft Edge www.hkcert.org
- Chrome 156 security update (CyberSecurityNews) cybersecuritynews.com
- Security notice Google Chrome 156 stable (TechGeeks) www.techgeeks.org
- Chrome 156 update (WindowsForum) windowsforum.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, 13:13.
Original description (NVD)
Use after free in DOM in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to 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.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.