Google Chrome: Use-after-free in CSS allows code execution in sandbox
Summary
A use-after-free vulnerability in the CSS component of Google Chrome before 155.0.8059.39 allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker must lure a victim to a crafted HTML page, for example via a phishing link or a compromised website. NVD rates the issue CVSS 8.8 (High), while Google rates it Low in its Chromium severity scale.
Affected
- Google Chrome prior to 155.0.8059.39
- Other Chromium-based browsers and distributions until they ship the fix (e.g. Debian, SUSE, Chainguard packages)
Fixed in
- Google Chrome 155.0.8059.39 or later
- Debian bookworm: 155.0.8059.39-1~deb12u1
- Microsoft Edge: check Microsoft's release notes for the correct build (sources conflict)
Workaround
Unknown. No vendor workaround is known; updating is the fix.
Exploitation
- Not known to be exploited in the wild; not listed in the CISA KEV catalog.
- CISA SSVC: exploitation none, automatable no, technical impact total.
- No public proof of concept found.
Our recommendation
- Update Google Chrome to 155.0.8059.39 or later on all workstations, including laptops and devices of remote workers.
- Verify that automatic updates are applied and check the installed browser versions.
- Check other Chromium-based browsers and embedded Chromium builds (for example Edge, Electron apps) for fixed versions.
- Monitor for reports of exploitation and patch promptly, as the exposure is broad.
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 565742178 issues.chromium.org
- OSV: DEBIAN-CVE-2026-106269 osv.dev
- OpenCVE: CVE-2026-106269 app.opencve.io
- Vulners: Microsoft record CVE-2026-106269 vulners.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, 22:03.
Original description (NVD)
Use after free in CSS in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
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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