Google Chrome: Use-after-free in WebAppInstalls on Android
Summary
A use-after-free vulnerability in the WebAppInstalls component of Google Chrome on Android allows a remote attacker to execute arbitrary code inside the sandbox. The attacker needs a victim to open a crafted HTML page, so user interaction is required. The NVD description places the code execution inside the sandbox, so full control of the device is not implied by this issue alone. Chromium rates it High, and CVSS 3.1 scores it 8.8.
Affected
- Google Chrome for Android prior to 156.0.8078.47 (per NVD)
- A third-party bulletin (HKCERT) also lists desktop builds. This is not confirmed by the vendor and must be checked against Google's advisory.
Fixed in
- Google Chrome for Android 156.0.8078.47 or later (NVD threshold)
- Later builds, such as 156.0.8078.79, are reported by secondary sources but not confirmed by the vendor.
Workaround
Unknown. No workaround is documented; updating Chrome is the fix.
Exploitation
- No evidence of in-the-wild exploitation found for this CVE.
- No public proof-of-concept found.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Verify that Chrome for Android is at 156.0.8078.47 or later, preferably the newest build.
- Ensure Play Store auto-updates are enabled on company and BYOD devices.
- For managed fleets, confirm the update has reached every device, since rollout is staged.
- Prioritise company phones and devices without MDM.
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 security notice CVE-2026-113217 ubuntu.com
- Vulners CVE-2026-113217 (CVELIST) vulners.com
- HKCERT security bulletin on Google Chrome www.hkcert.org
- ChromeGeek: Chrome 156 security update (21 fixes) www.chromegeek.com
- WindowsForum: Chrome 156 security update windowsforum.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, 13:01.
Original description (NVD)
Use after free in WebAppInstalls in Google Chrome on on Android 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.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.