Google Chrome: Use after free in V8 JavaScript engine
Summary
A use-after-free flaw in the V8 JavaScript engine of Google Chrome allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker only needs to lure a user to a crafted HTML page; no login is required. The vulnerability is rated High by Chromium (CVSS 3.1 base score 8.8), and a full system compromise would normally require a further sandbox escape.
Affected
- Google Chrome prior to 156.0.8078.47 (Windows, macOS, Linux)
- Chromium-based browsers such as Microsoft Edge depend on their own updates
Fixed in
- Google Chrome 156.0.8078.47 or later (Windows, macOS, Linux); deploy the newest available stable build
- Microsoft Edge: install the update published by Microsoft for CVE-2026-113044
Workaround
- No vendor-documented workaround known.
- Update Chrome and verify that the version starts with 156.
Exploitation
- Known exploitation in the wild: No evidence found.
- CISA KEV listing: Unknown (not verified).
- Public proof-of-concept: None found.
- CISA SSVC assessment: Exploitation none, automatable no, technical impact total.
Our recommendation
- Update Google Chrome and all Chromium-based browsers (for example Microsoft Edge) to the latest stable version on all workstations.
- Verify the installed version on each device, for example via chrome://settings/help.
- Check whether browsers are managed centrally and enforce automatic updates.
- Monitor for reports of active exploitation and apply further Chrome updates promptly.
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
- Microsoft Security Update Guide msrc.microsoft.com
- Ubuntu CVE tracker ubuntu.com
- NVD record via Vulners vulners.com
- Chrome 156 stable update overview browserhow.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, 14:42.
Original description (NVD)
Use after free in V8 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: 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.
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.