Google Chrome: Use-after-free in Toolbar on Android
Summary
A use-after-free vulnerability in the Toolbar component of Google Chrome on Android allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker needs a victim to open a crafted HTML page, so no authentication is required but user interaction is. The vendor rates the issue as Medium severity in Chromium terms.
Affected
- Google Chrome on Android prior to 156.0.8078.47
Fixed in
- Google Chrome on Android: 156.0.8078.47 or later
- 156.0.8078.79 is a later Android build and is the version to target
Workaround
Unknown. No vendor-documented workaround was found; apply the update.
Exploitation
- No evidence of exploitation in the wild found. A secondary source lists the CVE as not in CISA KEV.
- CISA SSVC in the CVE record: Exploitation none, Automatable no, Technical Impact total.
- EPSS 0.0042 (per Vulners).
- No public proof of concept found. Chromium bug details may stay restricted until most users are patched.
Our recommendation
- Check the Chrome version on all Android devices, including BYOD phones, via the Play Store or MDM, and confirm 156.0.8078.79 or later.
- Confirm Chrome on Windows, macOS and Linux is on a current 156 build.
- If Microsoft Edge is used, verify the version against Microsoft's MSRC entry for this CVE.
- Include Chrome in the regular update cycle and re-check for exploitation updates.
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 518068748 issues.chromium.org
- Chrome 156 stable: what's new (ChromeGeek) www.chromegeek.com
- Chrome 156 security update, 21 fixes (ChromeGeek) www.chromegeek.com
- Security notice: Google Chrome 156 stable (TechGeeks) www.techgeeks.org
- HKCERT security bulletin: Microsoft Edge multiple vulnerabilities www.hkcert.org
- Red Hat CVE entry via Vulners vulners.com
- Ubuntu CVE tracker entry ubuntu.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, 14:16.
Original description (NVD)
Use after free in Toolbar 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: 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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