Google Chrome: Use-after-free in WebRTC allows code execution in sandbox
Summary
A use-after-free flaw in the WebRTC component of Google Chrome allows a remote attacker to execute arbitrary code inside the browser sandbox. The attack requires a user to visit a crafted or compromised HTML page. The NVD description does not describe a sandbox escape, so the impact is limited to the sandbox unless it is chained with a second flaw.
Affected
- Google Chrome desktop versions before 155.0.8059.79 (Windows, macOS, Linux)
- Debian bookworm packages before 155.0.8059.79-1~deb12u1
- Ubuntu: chromium-browser package is listed as not affected; it installs the Chromium snap, which must be refreshed
- Other Chromium-based browsers: unknown, check with their vendors
Fixed in
- Google Chrome 155.0.8059.79 (Linux)
- Google Chrome 155.0.8059.79/.80 (Windows, macOS, per secondary reports)
- Debian bookworm: 155.0.8059.79-1~deb12u1
- Ubuntu: refresh the Chromium snap to the current version (snap version not verified)
Workaround
No workaround documented. Update Chrome.
Exploitation
- CISA SSVC: exploitation none, not automatable
- No evidence of exploitation in the wild found; not listed in CISA KEV according to a third-party tracker
- No public proof of concept found
- EPSS about 0.21% per a third-party tracker
Our recommendation
- Update Google Chrome to 155.0.8059.79 or later on all workstations and verify the installed version
- Use endpoint management to list Chrome versions and flag older builds
- Force a browser restart after the update has been downloaded, as rollout is staged
- Refresh the Chromium snap on Ubuntu systems and check other Chromium-based browsers and embedded applications
- Prioritise internet-facing user workstations within the normal update cycle
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
- OSV: DEBIAN-CVE-2026-110137 osv.dev
- Ubuntu security: CVE-2026-110137 ubuntu.com
- Vulners VulnRichment: CVE-2026-110137 vulners.com
- Cybersecurity News: multiple Google Chrome vulnerabilities cybersecuritynews.com
- SecurityOnline: Chrome 155 security update securityonline.info
- GitHub tracker: CVE issue 1964 github.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, 17:06.
Original description (NVD)
Use after free in WebRTC 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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