Google Chrome: Use-after-free in Input component
Summary
A use-after-free vulnerability (CWE-416) in the Input component of Google Chrome allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker must lure a user to a crafted HTML page; no login is required. Chromium rates the issue High (CVSS 8.8), and the CVE text limits code execution to the sandbox, so a separate sandbox escape would be needed for full system control.
Affected
- Google Chrome prior to 156.0.8078.79 (desktop)
- Other Chromium-based browsers (for example Microsoft Edge or Brave) need their own updates; one source reports that other forks were not seen as patched.
Fixed in
- Google Chrome 156.0.8078.79, according to the CVE description. The build number could not be confirmed on the vendor release page.
Workaround
Unknown. No vendor-documented workaround. Update Chrome and restart the browser.
Exploitation
- No evidence of exploitation in the wild found; not listed in CISA KEV (entry not checked directly).
- No public exploit code confirmed.
- EPSS: 0.24 % (percentile 15).
Our recommendation
- Check the Chrome version on all managed endpoints, including Chromium-based browsers, and make sure it is at least 156.0.8078.79 or the latest build.
- Confirm that browsers have been restarted after the update, because updates only apply after a restart.
- Track the vendor post for the final build and verify the whole fleet, since the October release contained many Chrome fixes.
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
- Threatint CVE mirror cve.threatint.com
- OffSeq Radar: CVE-2026-76031 radar.offseq.com
- The Hacker Wire: CVE-2026-76031 www.thehackerwire.com
- Sandbanks Digital: Chrome security update October 2026 sandbanksdigital.com
- Cobalt tracker issue 858 github.com
- Wikipedia: Google Chrome 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, 08:51.
Original description (NVD)
Use after free in Input in Google Chrome prior to 156.0.8078.79 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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