Google Chrome: Use-after-free in API allows code execution in sandbox
Summary
A use-after-free flaw in the API component of Google Chrome allows a remote attacker to execute arbitrary code inside the browser sandbox. The attack requires a user to visit a crafted HTML page. Per the description, the impact is limited to the sandbox; a full compromise would likely also require a sandbox escape. The vendor rates the Chromium security severity as Medium.
Affected
- Google Chrome desktop before 156.0.8078.47 (Linux, Android)
- Google Chrome desktop on Windows and macOS: use 156.0.8078.48 as the minimum fixed build (sources differ between .47 and .48)
- Chromium-based browsers that ingest this fix, such as Microsoft Edge, are affected until updated (Edge: 156.0.4314.42 or later)
Fixed in
- Google Chrome 156.0.8078.47 for Linux and Android
- Google Chrome 156.0.8078.48 for Windows and macOS (recommended target)
- Microsoft Edge 156.0.4314.42 or later
Workaround
Unknown. No workaround was found in the sources. Patching is the remedy.
Exploitation
- No evidence of exploitation in the wild was found.
- No public proof of concept was found; this does not prove that none exists.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update all Chrome and Chromium-based Edge installations to at least the fixed builds.
- Restart browsers after the update, because a running session may still use the old process.
- Check that automatic updates work on all workstations.
- Apply the whole Chrome 156 release, which contains many other fixes.
- Treat this as a high-priority browser update, not an emergency, given the lack of known exploitation.
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 Security Update Guide: CVE-2026-113275 msrc.microsoft.com
- Vulners: CVE-2026-113275 vulners.com
- Ubuntu Security: CVE-2026-113275 ubuntu.com
- HKCERT security bulletin: Microsoft Edge multiple vulnerabilities www.hkcert.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, 12:22.
Original description (NVD)
Use after free in API 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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