Google Chrome: Memory corruption in V8 allows code execution in sandbox
Summary
Google Chrome versions prior to 155.0.8059.84 contain a memory corruption flaw in the V8 JavaScript engine (CWE-119). A remote attacker can use a crafted HTML page to execute arbitrary code inside the browser sandbox. The victim must open the malicious page, for example through a phishing link, and no privileges are required. Google rates the Chromium security severity as High, and NVD rates the CVSS score as 8.8.
Affected
- Google Chrome prior to 155.0.8059.84 (desktop)
- Chromium-based builds that include the affected V8 code, until their own patches are installed
Fixed in
- Google Chrome 155.0.8059.84 or later for Linux
- Google Chrome 155.0.8059.84/.85 or later for Windows and Mac (per the vendor release notes; verify the exact builds in the advisory)
- Fedora: chromium-155.0.8059.84
- Ubuntu: confirm that the Chromium snap is current
Workaround
Unknown. Updating is the fix. Restart the browser after the update, because the fix only takes effect after a restart.
Exploitation
- Not confirmed as exploited in the wild; Google has not stated exploitation.
- Not listed in the CISA KEV catalog.
- CISA SSVC: exploitation none, automatable no, technical impact total.
- No public proof of concept found; this is unverified rather than confirmed absent.
Our recommendation
- Update Chrome to 155.0.8059.84 or later across all workstations and restart the browsers.
- Update Linux packages and the Chromium snap, if used.
- Check that Edge, Brave and other Chromium-based browsers have received their own patches.
- Prioritise users who browse external or untrusted content, and remind staff to be cautious with unknown links.
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 569659194 issues.chromium.org
- Ubuntu security tracker: CVE-2026-110920 ubuntu.com
- Vulners Debian CVE record: CVE-2026-110920 vulners.com
- OpenCVE: CVE-2026-110920 app.opencve.io
- Cybersecurity News: Google fixes 10 Chrome vulnerabilities cybersecuritynews.com
- Chrome 155.0.8059.84 fixes write-up dijitalturk.com
- Chrome Enterprise: release channels 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, 16:11.
Original description (NVD)
Memory corruption in V8 in Google Chrome prior to 155.0.8059.84 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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