Google Chrome: Memory corruption in Sandbox allows code execution
Summary
Google Chrome on desktop has a memory corruption flaw in its Sandbox component. A remote attacker can use a crafted HTML page to execute arbitrary code inside the sandbox, which the record rates as CVSS 8.8. The attack requires that a user loads the malicious page, for example through a phishing link or a compromised website.
Affected
- Google Chrome prior to 156.0.8078.47 (CVE description)
- Android Chrome builds before 156.0.8078.47 (secondary reports)
- Chromium-based Microsoft Edge until it ships the Chromium fix (secondary reports)
Fixed in
- Linux and Android: 156.0.8078.47 or later (secondary reports)
- Windows and macOS: 156.0.8078.48 or later (secondary reports, not confirmed in the primary advisory)
Workaround
No workaround. Update to a fixed version and restart the browser, because the fix only takes effect after a restart.
Exploitation
- No evidence of in-the-wild exploitation found; CISA KEV: No
- No public proof-of-concept found
- Chromium severity: Medium
- CISA SSVC: Exploitation none, automatable no, technical impact total
Our recommendation
- Confirm that all Chrome and Edge installations run 156.0.8078.48 or later on Windows and macOS, and 156.0.8078.47 or later on Linux and Android
- Force a browser restart on endpoints with pending updates
- Check the Google advisory and the Chromium bug page for changes, especially if the flaw is later marked as exploited
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 502376419 issues.chromium.org
- Vulners CVE record CVE-2026-113343 vulners.com
- Strix CVE record CVE-2026-113343 www.strix.ai
- Chrome 156 security update (Cybersecurity News) cybersecuritynews.com
- Google Chrome 156 fixes 353 security vulnerabilities (GBHackers) gbhackers.com
- Security notice: Google Chrome 156 stable (TechGeeks) www.techgeeks.org
- CVE-2026-113343 (OffSeq Radar) radar.offseq.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, 11:46.
Original description (NVD)
Memory corruption in Sandbox 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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