Google Chrome: Memory corruption in WebUI
Summary
Google Chrome versions before 156.0.8078.47 contain a memory corruption flaw in WebUI (CWE-119). A remote attacker can use a crafted HTML page to potentially execute arbitrary code inside the browser sandbox. The attack requires that a user opens the page, for example by clicking a link or visiting an attacker-controlled site. Chromium rates the issue Medium; NVD lists CVSS 8.8 High.
Affected
- Google Chrome versions prior to 156.0.8078.47
- Desktop builds on Windows, macOS and Linux
- Microsoft Edge (Chromium-based): HKCERT lists versions prior to 156.0.4314.42
Fixed in
- Google Chrome 156.0.8078.47 (Linux)
- Google Chrome 156.0.8078.48 (Windows, macOS, according to Wikipedia; verify on Google's release page)
- Microsoft Edge 156.0.4314.42 or later (HKCERT)
- Debian chromium updates DSA 6577-1 and DLA 4853-1 (verify exact package versions)
- Ubuntu marks its chromium-browser snap wrapper as not affected
Workaround
Unknown. No workaround is listed in the sources reviewed; updating is the fix.
Exploitation
- No evidence found of in-the-wild exploitation or a public proof of concept.
- CISA SSVC: Exploitation none, Automatable no.
- Status is unconfirmed, so check CISA KEV and Google's advisory for updates.
Our recommendation
- Update Chrome and Edge on all endpoints to the latest Stable build from Google's or Microsoft's release page; a relaunch is required to apply updates.
- Check browser versions on all workstations, including machines where the browser is rarely closed.
- Give priority to internet-facing user workstations, given the user-interaction vector and the lack of a workaround.
- Monitor for updates to the advisory and to CISA KEV.
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
- Vulners CVE record vulners.com
- Vulners Microsoft CVE entry vulners.com
- HKCERT Microsoft Edge security bulletin www.hkcert.org
- Ubuntu CVE tracker ubuntu.com
- Strix.ai CVE record www.strix.ai
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, 13:33.
Original description (NVD)
Memory corruption in WebUI 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: 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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