Google Chrome for iOS: Use-after-free in Navigation component
Summary
Google Chrome for iOS prior to 156.0.8078.47 contains a use-after-free flaw (CWE-416) in its Navigation component. A remote attacker can execute arbitrary code inside the browser sandbox by luring a user to a crafted HTML page. User interaction is required, and the CVSS 3.1 base score is 8.8.
Affected
- Google Chrome on iOS prior to 156.0.8078.47 (per CVE description)
- Exact affected iOS build range: unverified, because the CVE record lists an inconsistent range
Fixed in
- Chrome 156.0.8078.47 (per CVE description)
- iOS build number containing the fix: unknown, confirm via Google's iOS release notes or the App Store
Workaround
Unknown. No workaround is documented. Update Chrome for iOS.
Exploitation
- No evidence of exploitation in the wild found
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total
- No public proof of concept found
Our recommendation
- Update Chrome for iOS via the App Store to the latest version and verify the installed version
- Enforce App Store updates through MDM (for example Intune or Jamf) on managed iPhones and iPads
- Prioritise unmanaged or BYOD devices, where updates often lag
- Treat Chrome updates as routine, because Chrome 156 fixed many other flaws
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 553119084 issues.chromium.org
- Vulners CVE record CVE-2026-113236 vulners.com
- Strix CVE-2026-113236 www.strix.ai
- Security Online: Chrome 156 security update securityonline.info
- Malwarebytes: Chrome and Firefox updates fix serious security flaws www.malwarebytes.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, 12:52.
Original description (NVD)
Use after free in Navigation in Google Chrome on on iOS prior to 156.0.8078.47 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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