Google Chrome: Use-after-free in Media component allows sandbox code execution
Summary
Google Chrome before 155.0.8059.39 contains a use-after-free vulnerability (CWE-416) in the Media component. A remote attacker can execute arbitrary code inside the browser sandbox by luring a user to a crafted HTML page. No account is required, but the user must open the malicious page. Chromium rates the issue as High severity.
Affected
- Google Chrome desktop before 155.0.8059.39 (Linux, Windows and Mac)
- Debian 12 chromium before 155.0.8059.39-1~deb12u1
- Microsoft Edge: affected threshold not confirmed, see Microsoft's advisory
Fixed in
- Google Chrome 155.0.8059.39 (Linux)
- Google Chrome 155.0.8059.39 or 155.0.8059.40 (Windows and Mac)
- Debian 12 chromium 155.0.8059.39-1~deb12u1
- Microsoft Edge: fixed builds reported as 155.0.4283.62 (desktop) and 155.0.4283.61 (Android) by HKCERT, not confirmed by the vendor
Workaround
- Unknown. No vendor-recommended mitigation found; the documented remedy is updating.
Exploitation
- No evidence of exploitation in the wild found. CISA ADP Vulnrichment does not mark it as known exploited; verify in the CISA KEV catalog.
- No public proof of concept found in the searches performed (not exhaustive).
- EPSS score reported as 0.00303.
Our recommendation
- Confirm that Chrome is at 155.0.8059.39 or later (Mac 155.0.8059.40), or at a newer stable build.
- Enable automatic updates and check managed endpoints.
- Check Edge and other Chromium-based browsers separately against their vendor advisories.
- Prioritise the update because the browser is widely used and reachable by phishing links.
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
- OSV: DEBIAN-CVE-2026-106423 osv.dev
- HKCERT: Microsoft Edge multiple vulnerabilities www.hkcert.org
- CIS Advisory: Multiple vulnerabilities in Google Chrome www.cisecurity.org
- Vulners: CHAINGUARD CVE-2026-106423 vulners.com
- CISA ADP Vulnrichment (secondary aggregator) hol.org
- Google Chrome Enterprise: Extended Stable channel support.google.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, 21:43.
Original description (NVD)
Use after free in Media in Google Chrome prior to 155.0.8059.39 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.
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