Google Chrome: Use-after-free in Media allows code execution in sandbox
Summary
A use-after-free flaw in the Media component of Google Chrome prior to 156.0.8078.47 allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker only needs the victim to load a crafted HTML page, so ordinary web browsing is enough to be exposed. The CVSS base score is 8.8, while Chromium rates the bug Medium. The sources reviewed report no exploitation.
Affected
- Google Chrome prior to 156.0.8078.47
- Chromium-based products that consume the affected code may also be affected (for example Microsoft Edge), check their vendor advisories
Fixed in
- Google Chrome 156.0.8078.47 or later (secondary reports list 156.0.8078.47 or .48 for Windows and macOS; verify against the vendor advisory)
- Use the latest Chrome 156 stable build
Workaround
- None known. Updating is the fix.
- Chrome applies the update on relaunch, so restart the browser after updating.
Exploitation
- No evidence of exploitation in the wild found in the sources reviewed.
- No public proof-of-concept found.
- CISA KEV status not verified.
- EPSS 0.00417 (low modeled probability of exploitation).
Our recommendation
- Update Google Chrome to 156.0.8078.47 or later, preferably the latest Chrome 156 stable build, within the normal browser update cycle.
- Verify the browser version on all endpoints, especially managed fleets, and check that no browser process is still running the old version.
- Check Linux and Chromium-based installations separately, including snap packages.
- Monitor the CISA KEV catalog for changes in exploitation status.
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
- Microsoft Security Update Guide: CVE-2026-113065 msrc.microsoft.com
- Chainguard OSV entry (Chromium fixed version) osv.dev
- Vulners CVE entry (Debian advisories) vulners.com
- Ubuntu security tracker ubuntu.com
- Cybersecurity News: Chrome 156 security update cybersecuritynews.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, 14:34.
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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