Google Chrome: Use-after-free in Browser allows code execution in sandbox
Summary
A use-after-free vulnerability (CWE-416) in the Browser component of Google Chrome before 156.0.8078.47 allows a remote attacker to execute arbitrary code inside the browser sandbox. The attack requires that a user visits a crafted HTML page, for example through phishing or a compromised website. NVD rates the issue CVSS 8.8 (High). The Chromium tracker linked in the CVE record appears to describe a different flaw, so the mapping is not confirmed.
Affected
- Google Chrome before 156.0.8078.47 (desktop)
- Chromium-based browsers that depend on the affected Chromium version, for example Microsoft Edge (per HKCERT bulletin)
- Linux distributions that package Chromium (Debian, Ubuntu snap): check the vendor advisories
Fixed in
- Google Chrome 156.0.8078.47 or later (per CVE record; Windows and macOS builds are listed as 156.0.8078.48 or later by secondary sources)
- Microsoft Edge 156.0.4314.42 or later (per HKCERT bulletin)
- Always install the latest Stable build; later builds exist.
Workaround
Unknown.
- No workaround is needed once the browser is updated.
Exploitation
- No confirmed exploitation in the wild found; no CISA KEV entry found.
- No public proof of concept found.
- CISA SSVC: exploitation none, automatable no, technical impact total.
- EPSS about 0.0044 (per Vulners).
Our recommendation
- Update Google Chrome and all Chromium-based browsers (including Edge) to the latest Stable build.
- Relaunch the browser after the automatic update so that the fix takes effect.
- Check managed devices for outdated browser versions and enforce automatic updates.
- Check Linux and snap deployments against the distribution advisories.
- Monitor for unusual browser crashes or unexpected code execution on endpoints.
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 519217664 (referenced in CVE, content conflicts) issues.chromium.org
- Microsoft Edge multiple vulnerabilities (HKCERT) www.hkcert.org
- Ubuntu security tracker CVE-2026-113073 ubuntu.com
- Vulners MSCVE record CVE-2026-113073 vulners.com
- Strix CVE record CVE-2026-113073 www.strix.ai
- TechSpot Google Chrome download www.techspot.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, 14:26.
Original description (NVD)
Use after free in Browser 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.
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