Google Chrome: Memory corruption in SignIn allows code execution in sandbox
Summary
Memory corruption in the SignIn component of Google Chrome before 156.0.8078.47 can be triggered by a crafted HTML page. A remote attacker could potentially execute arbitrary code inside the browser sandbox. Exploitation requires that a user opens the malicious page; the sandbox limits the impact, and the vendor rates the issue Low in Chromium's severity scale while the CVSS score is 8.8.
Affected
- Google Chrome before 156.0.8078.47 (per CNA record)
- The CNA record's affected range is internally inconsistent ("156.0.8078.47 to < 156.0.8078.47"); treat all builds before 156.0.8078.47 as affected.
- Windows and macOS builds may be 156.0.8078.47 or 156.0.8078.48; unverified.
Fixed in
- Chrome 156.0.8078.47 (per CNA record; not confirmed on the vendor page)
- Windows and macOS: 156.0.8078.48 treated as minimum unless the vendor states otherwise
- Newer Stable and Extended Stable builds (reported as 156.0.8078.79/.80 for Windows and macOS, 156.0.8078.79 for Linux) are available; unverified.
Workaround
None if Chrome is updated. No vendor-documented workaround is known.
Exploitation
- No evidence of in-the-wild exploitation found.
- No public proof of concept found.
- Not listed in CISA KEV (third-party source).
- EPSS 0.00406.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update Google Chrome to the latest stable build on all Windows, macOS and Linux systems.
- Verify the installed version across the fleet, including managed devices and Chromium-based browsers such as Microsoft Edge.
- Ensure automatic browser updates are enabled and check that they run.
- Treat this as high priority for office environments, because browsers are used widely and a malicious web page is sufficient.
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
- Microsoft MSRC: CVE-2026-113152 msrc.microsoft.com
- Ubuntu security: CVE-2026-113152 ubuntu.com
- Vulners CVE record (CVELIST) vulners.com
- TechSpot Google Chrome download page www.techspot.com
- Strix AI: CVE-2026-113152 (third-party) www.strix.ai
- Chrome Releases: Early Stable Update for Desktop chromereleases.googleblog.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, 13:35.
Original description (NVD)
Memory corruption in SignIn 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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