Chrome: Use-after-free in Media component allows sandbox code execution
Summary
A use-after-free flaw in the Media component of Google Chrome allows a remote attacker to execute arbitrary code inside the browser sandbox. The attacker needs the victim to open a crafted HTML page, so the risk is drive-by exposure through web browsing or links. The CVSS score is 8.8 with high impact on confidentiality, integrity and availability; the sources do not say whether a sandbox escape is also needed for full compromise.
Affected
- Google Chrome versions prior to 155.0.8059.79
Fixed in
- Google Chrome 155.0.8059.79 or later (Stable channel update of 13 October 2026)
- Chromium-based distribution packages: check the vendor advisory for your distribution, for example Debian 12 chromium 155.0.8059.79-1~deb12u1
Workaround
- No workaround is documented in the sources. Apply the update.
- Restart Chrome after the update, because the browser must be relaunched to apply the fix.
Exploitation
- Not listed in the CISA KEV catalog according to tracker sites (not verified directly).
- No public proof of concept found by one aggregator; treat as weak evidence.
- No known exploitation in the wild; the release notes do not state exploitation. This is not a confirmation of absence.
Our recommendation
- Update Google Chrome to 155.0.8059.79 or later on all workstations.
- Check that Chromium-based browsers and distribution or snap packages include the fix.
- Make sure browsers are restarted after the update, especially on machines that have been running for a long time.
- Prioritise browser fleets that are not up to date and monitor for unusual browser crashes or behaviour.
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 entry issues.chromium.org
- Ubuntu security notice CVE-2026-110172 ubuntu.com
- OSV: DEBIAN-CVE-2026-110172 osv.dev
- Vulners VulnRichment CVE-2026-110172 vulners.com
- Malwarebytes: Chrome update fixes 37 security flaws www.malwarebytes.com
- Tenable/Vulners plugin list CVE-2026-110172 vulners.com
- TheHackerWire CVE-2026-110172 www.thehackerwire.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, 16:55.
Original description (NVD)
Use after free in Media in Google Chrome prior to 155.0.8059.79 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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