Google Chrome: Out-of-bounds write in Media allows sandbox escape
Summary
Google Chrome on Windows, Mac and Linux contains an out-of-bounds write in the Media component (CWE-787). A remote attacker can use a crafted HTML page to potentially execute arbitrary code outside the browser sandbox. The attack requires that a user opens the malicious page, for example through a link or advertisement, but no login is needed.
Affected
- Google Chrome Desktop versions before 155.0.8059.39
- Microsoft Edge and Linux distributions that ship the same Chromium fix (exact fixed builds: check the vendor advisories)
Fixed in
- Google Chrome 155.0.8059.39 (per CVE record), 155.0.8059.39/.40 for Windows and Mac and 155.0.8059.39 for Linux (per Google advisory of October 6, 2026)
- Install the latest Stable build; a third-party report lists 155.0.8059.79/.80 (Windows and Mac) and 155.0.8059.79 (Linux) from October 13-14, 2026, which is not verified against Google's release notes
Workaround
- No vendor workaround known. Updating Chrome is the fix.
- Ensure auto-update is enabled and restart the browser after updates.
Exploitation
- No exploitation known to us.
- CISA SSVC assessment: Exploitation none, Automatable no, Technical Impact total.
- A third-party alert lists the CVE as not in the CISA KEV catalogue; confirm against the catalogue.
- EPSS score 0.00338 (low).
Our recommendation
- Update Google Chrome on all Windows, Mac and Linux endpoints to the latest Stable build now.
- Check the installed version on each device (chrome://version) and confirm that browsers have been restarted.
- Track Microsoft Edge and Chromium-based packages separately and update them.
- Monitor for exploitation news and CISA KEV entries for this CVE.
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 issue tracker entry (access restricted) issues.chromium.org
- OpenCVE record CVE-2026-106401 app.opencve.io
- Vulners: Microsoft advisory entry for CVE-2026-106401 vulners.com
- Vulners: SUSE CVE entry for CVE-2026-106401 vulners.com
- CIS advisory listing CVE-2026-106401 www.cisecurity.org
- Malwarebytes: Update Chrome and ChromeOS to fix critical security issues www.malwarebytes.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, 23:11.
Original description (NVD)
Out of bounds write in Media in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to potentially execute arbitrary code outside 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.
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.