Google Chrome: Memory corruption in FileSystem
Summary
Google Chrome versions before 156.0.8078.47 contain a memory corruption flaw in the FileSystem component. A remote attacker can lure a user to a crafted HTML page and potentially execute arbitrary code inside the browser sandbox. User interaction is required, and the sources do not describe a sandbox escape.
Affected
- Google Chrome prior to 156.0.8078.47 (desktop)
- Other Chromium-based browsers and Linux packages: Unknown, check the vendor advisories
Fixed in
- Google Chrome 156.0.8078.47 or later; prefer the newest stable build
- Windows and macOS: 156.0.8078.48 reported by a secondary source, not verified against Google's advisory
- Microsoft Edge: 156.0.4314.42 or later according to HKCERT, not verified against Microsoft's advisory
Workaround
Unknown. No workaround was found; apply the browser update.
Exploitation
- No public proof of concept or in-the-wild exploitation found in the sources.
- A third-party tracker lists it as not in CISA KEV (not checked directly).
- Chromium rates the severity as Low. CISA SSVC: exploitation none, automatable no, total technical impact.
Our recommendation
- Update all Chrome, Edge and Chromium installs to 156.0.8078.47 or later, preferably the newest stable build.
- Check Linux snap and Debian packages, and confirm that managed update policies enforce updates.
- Monitor browser versions across endpoints until the update is verified.
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 notice CVE-2026-113248 ubuntu.com
- Vulners CVE-2026-113248 vulners.com
- HKCERT Microsoft Edge security bulletin www.hkcert.org
- Chrome 156 stable update overview browserhow.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, 12:38.
Original description (NVD)
Memory corruption in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
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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