Google Chrome: Use after free in Frames allows code execution in sandbox
Summary
Google Chrome versions before 156.0.8078.79 contain a use-after-free flaw in the Frames component. A remote attacker can use a crafted HTML page to execute arbitrary code inside the browser sandbox. The attack requires a user to visit the malicious page, for example through a link in a phishing email.
Affected
- Google Chrome prior to 156.0.8078.79 (Stable and Extended Stable channels)
- Chromium-based browsers that inherit the flaw: vendor-specific versions unknown
Fixed in
- Google Chrome 156.0.8078.79 or later (Windows, macOS, Linux; exact per-platform builds vary, see Chrome Releases)
- Chromium-based browsers: check each vendor's advisory, fixed versions unknown
Workaround
Unknown. No workaround was found; updating is the recommended fix.
Exploitation
- No evidence of exploitation in the wild found; not listed in CISA KEV.
- No public proof-of-concept exploit found.
- EPSS: 0.2 % (percentile 10).
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Confirm all Chrome installations are at 156.0.8078.79 or later, including Chrome Enterprise/MSI deployments.
- Restart browsers after the update so the fix takes effect.
- Check other Chromium-based browsers and embedded Chromium applications for their own fixes.
- Monitor CISA KEV and the Chrome Releases blog for changes in exploitation status.
- Patch within the normal browser update window; the risk is high because Chrome is widespread and no login is needed.
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 573264074 issues.chromium.org
- VulDB CVE-2026-119260 vuldb.com
- OffSeq Radar: CVE-2026-119260 radar.offseq.com
- CVE threatint record cve.threatint.com
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, 08:56.
Original description (NVD)
Use after free in Frames 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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