Google Chrome: Memory corruption in Contacts allows sandbox code execution
Summary
Google Chrome desktop versions before 156.0.8078.47 contain a memory corruption flaw in the Contacts component (CWE-119). A remote attacker can use a crafted HTML page to execute arbitrary code inside the browser sandbox. The attack requires that a user opens the malicious page, and a full compromise would also need a sandbox escape.
Affected
- Google Chrome desktop before 156.0.8078.47 (per CVE description)
- Microsoft Edge before 156.0.4314.42 (per HKCERT, Chromium-based)
Fixed in
- Google Chrome 156.0.8078.47 (Linux, Android); 156.0.8078.47 or 156.0.8078.48 on Windows and macOS (per secondary reporting)
- A newer build, 156.0.8078.73, is reported to include this fix. Unconfirmed against the vendor post.
- Verify the fixed build numbers in the Chrome Releases post before rollout.
Workaround
Unknown. No vendor workaround identified; installing the update is the remedy.
- Restart the browser after updating, because the fix only takes effect after relaunch.
Exploitation
- No evidence of exploitation in the wild found.
- No public proof-of-concept found.
- CISA SSVC: exploitation none, not automatable, total technical impact.
Our recommendation
- Verify the Chrome version on all desktops and Android devices and install the newest 156 build.
- Make sure Microsoft Edge is updated as well.
- Restart browsers after updating.
- Monitor Chrome 'exploited in the wild' notices and the CISA KEV catalog.
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 issues.chromium.org
- Ubuntu security tracker ubuntu.com
- Vulners CVE listing vulners.com
- Vulners NVD record vulners.com
- HKCERT security bulletin (Microsoft Edge) www.hkcert.org
- TechGeeks security notice, Chrome 156 www.techgeeks.org
- SecurityOnline, Chrome 156.0.8078.73 update securityonline.info
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, 12:53.
Original description (NVD)
Memory corruption in Contacts in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
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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