Google Chrome: Memory corruption in Dawn allows sandbox code execution
Summary
Google Chrome versions before 156.0.8078.79 contain a memory corruption flaw in Dawn, Chromium's WebGPU implementation. A remote attacker can potentially execute arbitrary code inside the browser sandbox by luring a user to a crafted HTML page. Exploitation requires the user to visit the malicious page; the CVSS base score is 8.8 (High).
Affected
- Google Chrome prior to 156.0.8078.79
- Earlier Chrome 156 security builds (up to 156.0.8078.73 according to VulDB) are considered affected
- Versions before Chrome 156 and other platforms such as iOS: Unknown.
Fixed in
- Chrome 156.0.8078.79 (Windows, Mac, Linux, Android); Windows and Mac also receive 156.0.8078.80 per the Chrome Releases post.
Workaround
- Unknown. No interim mitigation is described by the sources; updating is the fix.
Exploitation
- Not known to be exploited. The CVE is not listed in CISA KEV according to OffSeq.
- No public proof-of-concept exploit code found.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update Google Chrome to 156.0.8078.79 or later on all desktop and Android devices, and verify the installed version.
- For managed fleets, deploy the update centrally and consider the Extended Stable channel for controlled rollout.
- Restrict browsing of untrusted websites on systems that have not yet been updated and monitor for unusual browser behaviour.
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
- VulDB entry 428803 vuldb.com
- Strix CVE-2026-119264 www.strix.ai
- OffSeq threat radar CVE-2026-119264 radar.offseq.com
- Vulners PT-2026-132872 vulners.com
- ChromeGeek: Chrome 156 security update www.chromegeek.com
- TechSpot Google Chrome download www.techspot.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, 08:52.
Original description (NVD)
Memory corruption in Dawn in Google Chrome prior to 156.0.8078.79 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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