Google Chrome: Use-after-free in Extensions allows code execution in sandbox
Summary
Google Chrome before 156.0.8078.47 contains a use-after-free flaw (CWE-416) in its Extensions component. A remote attacker can execute arbitrary code inside the browser sandbox by luring a victim to a crafted HTML page. The attack requires no credentials but needs user interaction, and no sandbox escape has been reported.
Affected
- Google Chrome prior to 156.0.8078.47 (desktop)
Fixed in
- Google Chrome 156.0.8078.47 (per CVE description; the vendor post could not be fully verified)
- Newer 156.x builds are available and should be used
Workaround
- No vendor-published workaround. Applying the update is required.
- Restrict extension installation to approved sources via Chrome enterprise policy (general hardening, not vendor-sourced).
Exploitation
- No evidence of in-the-wild exploitation found.
- CISA KEV: not listed.
- No public proof of concept found.
- CISA SSVC: exploitation none, automatable no, technical impact total.
Our recommendation
- Update all Google Chrome installations to the latest 156.x build now.
- Verify that all Chromium-based browsers (for example Edge, Brave, Vivaldi) are updated.
- Check Linux systems separately, because distribution packages may be handled differently.
- Keep automatic updates enabled and monitor for managed or disabled update policies.
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 501805751 issues.chromium.org
- Microsoft Security Update Guide: CVE-2026-113105 msrc.microsoft.com
- Ubuntu Security: CVE-2026-113105 ubuntu.com
- Vulners CVELIST: CVE-2026-113105 vulners.com
- Strix: CVE-2026-113105 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, 14:00.
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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