Google Chrome: Use after free in ShapeDetection allows sandbox escape
Summary
A use-after-free flaw in the ShapeDetection component of Google Chrome before 155.0.8059.79 can be abused by a remote attacker. The attacker must first have compromised the renderer process and then lure a user to a crafted HTML page to execute arbitrary code outside the browser sandbox. The CVSS base score is 8.3 (High), and the vector requires user interaction and a prior renderer compromise. No exploitation or public proof of concept has been found.
Affected
- Google Chrome prior to 155.0.8059.79 on Windows, Mac and Linux
- Google Chrome for Android (155.0.8059.79 is the fixed version)
- Chromium-based browsers were not checked
- Ubuntu chromium-browser package: not affected, the Chromium snap must be refreshed
Fixed in
- Google Chrome 155.0.8059.79 (Linux, Android) and 155.0.8059.79/.80 (Windows, Mac)
- Debian: 155.0.8059.79-1~deb12u1
Workaround
- No vendor-recommended workaround known. Patching is the only remediation.
Exploitation
- No evidence of exploitation in the wild found.
- Not listed in CISA KEV at the time of research (re-check the catalogue).
- EPSS is low (about 0.3%).
- No public proof of concept found.
Our recommendation
- Update Google Chrome to 155.0.8059.79 or later on all Windows, Mac, Linux and Android devices.
- Inventory Chrome versions and flag anything below 155.0.8059.79, including Extended Stable devices.
- Verify actual build numbers after the update, since the rollout is staged.
- Enforce relaunch so the update takes effect; patch the whole batch of 37 fixes in this release.
- Monitor for exploitation indicators and re-check CISA KEV.
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 entry issues.chromium.org
- Debian OSV entry osv.dev
- Ubuntu security CVE page ubuntu.com
- Malwarebytes: Chrome update fixes 37 security flaws www.malwarebytes.com
- VulDB entry vuldb.com
- GitHub vulnerability alert (third-party snapshot) github.com
- Vulners/VulnCheck vulnrichment 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 1 Nov 2026, 13:50.
Original description (NVD)
Use after free in ShapeDetection in Google Chrome prior to 155.0.8059.79 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside 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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