Google Chrome: Use after free in Extensions allows sandbox code execution
Summary
Google Chrome versions before 156.0.8078.47 contain a use-after-free vulnerability (CWE-416) in the Extensions component. A remote attacker can execute arbitrary code inside the browser sandbox by luring a user to a crafted HTML page. User interaction is required, and full compromise typically needs a second flaw to escape the sandbox.
Affected
- Google Chrome (desktop) prior to 156.0.8078.47
- Windows, Mac and Linux builds of Chrome 156 are listed as 156.0.8078.47 or 156.0.8078.48 by third-party sources; confirm against the vendor advisory.
- Other Chromium-based browsers and Linux distribution packages are not confirmed here.
Fixed in
- Chrome 156 stable (Windows, Mac, Linux), released 20 October 2026, with build 156.0.8078.47 or later.
- Use the latest 156.x build available for your platform.
Workaround
- Unknown. No vendor-specific workaround was found.
- Interim measures not verified against a vendor source: enforce automatic Chrome updates via managed policy and restrict extension installation to approved extensions.
Exploitation
- No evidence of exploitation in the wild found.
- No public proof of concept found.
- Not listed in CISA KEV according to a third-party snapshot; re-check the CISA KEV catalog.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update Chrome on all endpoints to version 156.0.8078.47 or later, preferably the latest 156.x build.
- Verify the browser version centrally, for example via managed policy or endpoint management.
- Check Microsoft Edge and other Chromium-based browsers and apply their updates.
- Restrict extension installation to approved extensions.
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 bug 513512147 issues.chromium.org
- VulnERS NVD record CVE-2026-113112 vulners.com
- VulnERS MSCVE record CVE-2026-113112 vulners.com
- Strix CVE-2026-113112 (third-party snapshot) 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, 13:54.
Original description (NVD)
Use after free in Extensions 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: 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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