Google Chrome: Use after free in Media component allows sandboxed code execution
Summary
A use-after-free vulnerability in the Media component of Google Chrome prior to 156.0.8078.47 allows a remote attacker to execute arbitrary code inside the sandbox. The attack requires the victim to open a crafted HTML page, for example via a link or phishing message. NVD rates the issue CVSS 8.8 (High), while Chromium rates it Medium, and no in-the-wild exploitation is known.
Affected
- Google Chrome prior to 156.0.8078.47 (desktop)
- Chromium-based browsers may be affected; check the vendor advisories (e.g. Microsoft Edge)
- Android and iOS builds: Unknown.
Fixed in
- Google Chrome 156.0.8078.47 or later (Linux 156.0.8078.47; Mac/Windows 156.0.8078.47/.48 or later)
- Newer 156.x builds exist (reported as 156.0.8078.79/.80); deploy the latest 156.x build.
- Ubuntu chromium-browser: Not affected (Chromium snap is used).
- Debian chromium: updates issued (DSA-6577-1, DLA-4853-1); exact package versions not verified.
Workaround
- No workaround is needed when patched.
- No vendor-documented interim mitigation found.
- For managed fleets, enforce the update through management tooling rather than relying on auto-update.
Exploitation
- CISA KEV: not listed.
- EPSS: conflicting sources (0.00404 or unknown).
- Public proof-of-concept: none found.
- No known exploitation.
Our recommendation
- Verify all Chrome installations run 156.0.8078.47 or later, preferably the current 156.x build.
- Confirm Chromium-based browsers (e.g. Edge) are updated as well.
- Prioritise endpoints where users browse freely or are targeted by phishing.
- Check managed fleets with your management tooling and monitor for update failures.
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
- HKCERT security bulletin www.hkcert.org
- Ubuntu CVE tracker ubuntu.com
- Vulners NVD record vulners.com
- Vulners Debian CVE list vulners.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, 14:52.
Original description (NVD)
Use after free in Media in Google Chrome 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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