Google Chrome: Memory corruption in Paint allows code execution in sandbox
Summary
Memory corruption in the Paint component of Google Chrome before 156.0.8078.47 can be triggered by a remote attacker using a crafted HTML page. Successful exploitation allows arbitrary code execution inside the renderer sandbox. The user must visit the malicious page, but no login is required; Chromium rates the issue High with a CVSS 3.1 base score of 8.8.
Affected
- Google Chrome versions prior to 156.0.8078.47 (desktop)
Fixed in
- Google Chrome 156.0.8078.47 (Linux build, per research notes)
- Google Chrome 156.0.8078.48 for Windows and macOS (per Wikipedia, secondary source)
- Later stable builds are available and should be installed; verify against the Chrome release notes
- Ubuntu: refresh the Chromium snap; the chromium-browser package is only a wrapper
Workaround
Unknown. No verified workaround for this specific issue; updating is the required fix.
Exploitation
- No evidence of exploitation in the wild found in the research
- No public proof-of-concept found
- A third-party tracker lists the CVE as not in the CISA KEV catalogue; the catalogue was not checked directly
- CISA SSVC assessment: exploitation none, not automatable, total technical impact
Our recommendation
- Check the Chrome version on all endpoints (chrome://version) and update to 156.0.8078.47 at minimum, preferably the latest stable build
- Ensure automatic updates work or enforce them via policy
- Refresh the Chromium snap on Ubuntu/Linux systems
- Re-check the Chrome release notes and CISA KEV before closing the ticket
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
- Microsoft Security Update Guide msrc.microsoft.com
- Vulners CVE record vulners.com
- Ubuntu security notice ubuntu.com
- Google Chrome (Wikipedia) en.wikipedia.org
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, 15:06.
Original description (NVD)
Memory corruption in Paint 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: 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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