Google Chrome: Use-after-free in Network component allows sandboxed code execution
Summary
A use-after-free flaw in the Network component of Google Chrome on Windows allows a remote attacker to execute arbitrary code inside the browser sandbox. The attack requires the victim to visit a crafted HTML page, so user interaction is needed. The CVSS base score is 8.8 (High). Code execution is limited to the sandbox, so a full system compromise normally requires a second sandbox-escape flaw.
Affected
- Google Chrome on Windows prior to 156.0.8078.47
- Linux: HKCERT lists 156.0.8078.47 as the fixed version; Ubuntu marks its chromium-browser package as not affected
- Microsoft Edge and other Chromium-based browsers may also be affected (unverified)
Fixed in
- Google Chrome 156.0.8078.47 or later (HKCERT lists 156.0.8078.47/.48 or later for Windows)
Workaround
Unknown. No vendor-documented workaround beyond updating.
Exploitation
- No known exploitation in the wild in the research sources (secondary source; CISA KEV not checked directly)
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total
- No public proof of concept found
Our recommendation
- Update Chrome on all Windows endpoints to the current Stable build and restart the browser, because updates apply only after a restart
- Verify the installed version with a browser inventory, and update Edge and other Chromium-based browsers separately
- Prioritise hosts used for administrative tasks or for browsing untrusted web content
- Confirm the version against the Chrome Releases post and the NVD record, as the sources are partly secondary
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Chrome Releases: Stable Channel Update for Desktop (20 Oct 2026) chromereleases.googleblog.com
- Chromium issue tracker issues.chromium.org
- Microsoft Security Update Guide: CVE-2026-113119 msrc.microsoft.com
- HKCERT security bulletin: Google Chrome multiple vulnerabilities www.hkcert.org
- Ubuntu security tracker: CVE-2026-113119 ubuntu.com
- Strix: CVE-2026-113119 (secondary) www.strix.ai
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, 13:46.
Original description (NVD)
Use after free in Network in Google Chrome on on Windows 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: 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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