Google Chrome: Memory corruption in Turbolev
Summary
A memory corruption flaw in the Turbolev component of Google Chrome prior to 156.0.8078.73 can be triggered by a crafted HTML page. An attacker who lures a user to such a page without authentication could potentially execute arbitrary code outside the Chrome sandbox. Exploitation requires the user to open the malicious page.
Affected
- Google Chrome prior to 156.0.8078.73 (desktop)
- Chromium-based builds and Linux distribution packages of Chromium may have different fix timing; check the respective vendor advisory
Fixed in
- Google Chrome 156.0.8078.73 or later (Stable channel update of 27 Oct 2026)
- Build numbers were taken from a secondary source and should be confirmed in the Chrome Releases advisory
Workaround
Unknown.
- No vendor-documented interim mitigation is known; applying the update is the fix.
Exploitation
- No evidence of exploitation in the wild found.
- CISA SSVC assessment: exploitation none, automatable no, technical impact total.
- No public proof of concept found.
- CVSS 9.6 (NVD), while VulDB lists 6.3 (Medium); the NVD value should be confirmed.
Our recommendation
- Update Google Chrome to 156.0.8078.73 or later on all managed and unmanaged devices, and treat this as an urgent update.
- Check Linux hosts against the distribution's chromium package advisory.
- Enable Chrome auto-update for remote and unmanaged devices.
- Apply the complete Chrome update, as it contains further security fixes.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Google Chrome Releases: Stable Channel Update for Desktop chromereleases.googleblog.com
- Chromium bug 568348290 issues.chromium.org
- Red Hat CVE / Vulners aggregation vulners.com
- VulDB CVE entry vuldb.com
- Strix CVE entry www.strix.ai
- Positive Technologies via Vulners vulners.com
- Secondary report on Chrome and Firefox updates malware.news
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 30 Oct 2026, 22:05.
Original description (NVD)
Memory corruption in Turbolev in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code outside 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.