Google Chrome for Android: Use after free in TrustedWebActivities
Summary
A use-after-free vulnerability (CWE-416) in the TrustedWebActivities component of Google Chrome for Android allows a remote attacker to potentially execute arbitrary code inside the browser sandbox. Exploitation requires the victim to open a crafted HTML page, for example via a link in email or messaging. No authentication is required, and the CVSS base score is 8.8 (High).
Affected
- Google Chrome for Android prior to 156.0.8078.47
- Note: The affected range given in the CVE description and the fixed build are based on the CVE data and secondary sources; a third-party source lists up to 155.0.8059.84, which conflicts with the vendor description and is unverified.
Fixed in
- Google Chrome for Android 156.0.8078.47 or later
- Newer Android builds are reported (e.g. 156.0.8078.73 via Google Play); these reports are secondary and unverified.
Workaround
- No workaround known. Updating Chrome for Android is the fix.
Exploitation
- No known exploitation in the wild.
- No public proof-of-concept known.
- Chromium rates the issue Medium; CVSS 3.1 base score is 8.8. CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Check the Chrome version on all Android devices and update to 156.0.8078.47 at minimum, preferably the current Google Play build.
- Enforce automatic updates through Google Play or MDM.
- Remind staff not to open unknown links from email or messaging.
- Verify the Google advisory and Chromium issue once accessible.
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 CVE-2026-113204 vuldb.com
- Ubuntu security CVE-2026-113204 ubuntu.com
- Chrome 156 security update (Wikipedia Google Chrome) en.wikipedia.org
- Microsoft Edge multiple vulnerabilities (HKCERT) www.hkcert.org
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, 13:03.
Original description (NVD)
Use after free in TrustedWebActivities in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
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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