Google Chrome: Type confusion in V8 allows code execution in sandbox
Summary
Google Chrome versions before 155.0.8059.79 contain a type confusion flaw in the V8 JavaScript engine (CVE-2026-110140, CVSS 8.8). A remote attacker can execute arbitrary code inside the browser sandbox by luring a user to a crafted HTML page. No user login is needed, but the user must open the page.
Affected
- Google Chrome prior to 155.0.8059.79 (per the CVE description)
- Debian chromium packages prior to 155.0.8059.79-1~deb12u1 (bookworm)
Fixed in
- Google Chrome 155.0.8059.79 (Linux)
- Google Chrome 155.0.8059.79/.80 (Windows and macOS), per third-party reporting; the Google advisory header was the only part reviewed
- Debian bookworm: 155.0.8059.79-1~deb12u1
Workaround
No workaround is documented. Install the update and restart the browser, because the fix only takes effect in a running browser. Other Chromium-based browsers such as Edge, Brave and Opera need their own vendor updates.
Exploitation
- In the wild: No evidence found. CISA SSVC assessment lists exploitation as none and automatable as no.
- Public proof of concept: None found.
- Unknown: Google's full advisory and the Chromium issue tracker could not be fully reviewed.
Our recommendation
- Update Google Chrome to 155.0.8059.79 or later on all endpoints within your emergency patch window.
- Verify the browser version on each device and make sure the browser is restarted after the update.
- Update other Chromium-based browsers separately.
- Monitor the CISA Known Exploited Vulnerabilities catalog for changes to the exploitation status.
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 entry issues.chromium.org
- Debian security tracker (OSV) osv.dev
- Ubuntu security notice ubuntu.com
- Malwarebytes: Chrome fixes 37 security flaws www.malwarebytes.com
- Google Chrome Extended Stable channel help support.google.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, 17:07.
Original description (NVD)
Type confusion in V8 in Google Chrome prior to 155.0.8059.79 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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