Google Chrome: Incorrect authorization in FileSystem allows sandbox escape on Windows
Summary
Google Chrome on Windows contains an incorrect authorization flaw in the FileSystem component (CWE-863). A remote attacker who lures a user to a crafted HTML page may be able to execute arbitrary code outside the browser sandbox. The attack requires user interaction, typically by social engineering or phishing.
Affected
- Google Chrome on Windows prior to 154.0.8037.97
- Exact affected version range per the CVE record: 154.0.8037.97 (record wording is inconsistent; verify against Chrome release notes)
Fixed in
- Google Chrome 154.0.8037.97 or later (vendor-stated fix for Windows)
- Note: a Debian record lists 155.0.8059.39 as fixed; the conflict is unresolved, so the latest stable Chrome is the target.
Workaround
- No workaround documented by the vendor. Update Chrome.
Exploitation
- CISA SSVC: exploitation none, not automatable, total technical impact.
- Not listed in CISA KEV.
- EPSS scores of about 0.21% to 0.33%.
- No public proof of concept found; this does not prove that none exists.
Our recommendation
- Check the Chrome version on all Windows endpoints (chrome://settings/help) and ensure it is the latest stable release.
- Verify that managed update policies do not block Chrome updates.
- Find and update offline or rarely used devices.
- Make sure users are trained to recognise phishing and malicious links.
- Check Chrome on Linux and macOS as well.
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 entry issues.chromium.org
- Debian OSV record osv.dev
- OpenCVE record app.opencve.io
- SUSE CVE record via Vulners vulners.com
- Rapid7 record via Vulners vulners.com
- Threatint CVE record cve.threatint.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 30 Oct 2026, 23:26.
Original description (NVD)
Incorrect authorization in FileSystem in Google Chrome on on Windows prior to 154.0.8037.97 allowed a remote attacker leveraging social engineering 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.
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