Google Chrome: Type confusion in V8 allows code execution in sandbox
Summary
Type confusion in the V8 JavaScript engine of Google Chrome before 155.0.8059.39 allows a remote attacker to execute arbitrary code inside the browser sandbox. The attack requires that a user opens a crafted HTML page. Google rates the issue Low in Chromium, while the NVD/CNA CVSS score is 8.8 (High).
Affected
- Google Chrome prior to 155.0.8059.39 (desktop, per the CNA record)
- Chromium-based browsers that have not yet integrated the fix (not verified)
- Note: third-party databases list differing version ranges; the vendor advisory was used as the basis
Fixed in
- Windows and Linux: Chrome 155.0.8059.39 or later
- Mac: Chrome 155.0.8059.40 or later
- Linux distributions: chromium 155.0.8059.39 (SUSE); Debian and Ubuntu via their own packages and snap refresh (exact Debian versions unknown)
- Microsoft Edge: fixed build unknown
Workaround
Unknown. No vendor-documented workaround is available; the update is the only fix.
Exploitation
- Not listed in the CISA KEV catalog
- CISA SSVC (ADP): Exploitation none, Automatable no, Technical Impact total
- EPSS approximately 0.0036
- No public proof of concept found in the research; this is not a complete check
- Google's advisory does not state in-the-wild exploitation
Our recommendation
- Update Chrome on all managed systems to 155.0.8059.39 or later (Windows/Linux) or 155.0.8059.40 or later (Mac)
- Check Chrome Enterprise policies, extended stable channel use and Linux/snap update pipelines
- Verify that laptops used outside the office are also updated
- Monitor for exploitation reports and follow the vendor's update notes
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
- SUSE CVE entry (vulners) vulners.com
- Ubuntu security CVE entry ubuntu.com
- OpenCVE entry app.opencve.io
- Browserhow Chrome 155 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, 21:47.
Original description (NVD)
Type confusion in V8 in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
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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