Google Chrome: Improper input validation in ANGLE on macOS allows sandbox code execution
Summary
Google Chrome on macOS before 156.0.8078.73 has an improper input validation flaw in ANGLE, the graphics translation layer inside the browser. A remote attacker can use a crafted HTML page to potentially execute arbitrary code inside the browser sandbox. Exploitation requires that a user opens the malicious page, but no login is needed.
Affected
- Google Chrome on macOS prior to 156.0.8078.73
- The CVE description covers macOS only; Windows and Linux are not part of this CVE
Fixed in
- Google Chrome 156.0.8078.73 or later on macOS (secondary sources name 156.0.8078.73 or 156.0.8078.74; verify the exact version in Google's Stable Channel Update of 27 October 2026)
Workaround
- Unknown. No vendor workaround identified; the update is the fix.
- Chrome applies the update only after a restart.
Exploitation
- No in-the-wild exploitation known.
- No public proof of concept found.
- CISA SSVC assessment: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update Chrome on all Mac endpoints to 156.0.8078.73 or later.
- Restart Chrome on managed devices so the update takes effect.
- Verify the version via chrome://settings/help.
- Check Macs for other Chromium-based browsers and update them separately.
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
- Ubuntu CVE tracker entry ubuntu.com
- VulDB analysis of CVE-2026-118329 vuldb.com
- Sandbanks Digital: Chrome security update October 2026 sandbanksdigital.com
- Chrome Geek: Chrome 156 security update www.chromegeek.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, 09:56.
Original description (NVD)
Improper input validation in ANGLE in Google Chrome on on Mac prior to 156.0.8078.73 allowed a remote attacker to potentially 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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