Google Chrome: Memory corruption in HTML allows code execution in sandbox
Summary
Memory corruption in the HTML engine of Google Chrome desktop versions before 156.0.8078.73 can be triggered by a crafted web page. A remote attacker may execute arbitrary code inside the browser sandbox. The attack requires that a user visits the malicious page, for example through a link, advertisement or compromised website.
Affected
- Google Chrome desktop before 156.0.8078.73 (Windows, macOS, Linux)
Fixed in
- Google Chrome 156.0.8078.73 or later, released in the Stable update of 27 October 2026
- Use the newest Stable build, as later releases fix further issues
Workaround
- Unknown. No vendor workaround is published; updating is the mitigation.
Exploitation
- No known exploitation in the wild.
- No public proof of concept found.
- Not listed in CISA KEV according to an automated tracker, not verified against the CISA catalogue.
- EPSS 0.32 %.
Our recommendation
- Update Chrome on all desktop endpoints to 156.0.8078.73 or the latest Stable build.
- Restart the browser after the update, as an open browser keeps running the old version.
- Enforce browser updates through central management and verify installed versions.
- Prioritise endpoints where staff browse widely or Chrome is not managed centrally.
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 bug tracker entry issues.chromium.org
- Ubuntu CVE tracker ubuntu.com
- MS-ISAC advisory 2026-122 www.cisecurity.org
- OffSeq threat radar radar.offseq.com
- VulDB CVE-2026-118317 vuldb.com
- Tenable detection plugin www.tenable.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, 10:02.
Original description (NVD)
Memory corruption in HTML in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially 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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