Google Chrome: Use after free in Frames allows code execution in sandbox
Summary
A use-after-free vulnerability in the Frames component of Google Chrome allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker needs a victim to open a crafted HTML page, so user interaction is required. Chromium rates the issue Medium, and the CVSS 3.1 score in the request is 8.8. Full compromise would normally also require a sandbox escape, which is not described in the sources.
Affected
- Google Chrome prior to 156.0.8078.47
- Chromium-based Microsoft Edge, per HKCERT: versions before 156.0.4314.42
- Linux distributions shipping Chromium packages (for example Debian); on Ubuntu, the Chromium snap
Fixed in
- Google Chrome 156.0.8078.47 or later (the vendor advisory build number could not be confirmed from the sources; the latest 156 stable build is recommended)
- Microsoft Edge 156.0.4314.42 or later
- Debian: DSA 6577-1 and DLA 4853-1 (chromium)
- Ubuntu: update the Chromium snap
Workaround
Unknown.
No vendor workaround was found in the sources. Patching is the only known fix.
Exploitation
- No evidence of active exploitation in the wild was found.
- CISA SSVC assessment: Exploitation none, Automatable no, Technical Impact total.
- No public proof of concept was found; this does not prove that none exists.
Our recommendation
- Update Google Chrome, Microsoft Edge and other Chromium-based browsers to the latest 156 stable build without delay.
- Verify that automatic updates are enabled on all endpoints and check the installed browser versions.
- For Ubuntu and other Linux systems, make sure the Chromium snap or distribution package is updated.
- Prioritise endpoints with web access and any systems where updates are disabled or delayed.
- Monitor vendor advisories for updates to this entry.
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
- CVE record (vulners) vulners.com
- Ubuntu security tracker CVE-2026-113259 ubuntu.com
- HKCERT security bulletin: Microsoft Edge 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, 12:34.
Original description (NVD)
Use after free in Frames 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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