Google Chrome: Use-after-free in HTML parser allows code execution in sandbox
Summary
Google Chrome versions before 155.0.8059.39 contain a use-after-free flaw in the HTML parser (CWE-416). A remote attacker can execute arbitrary code inside the browser sandbox by luring a user to a crafted HTML page. The victim must visit the page, but no login is required. Sandbox code execution is usually one stage of a larger attack chain and not a full system compromise on its own.
Affected
- Google Chrome for Desktop prior to 155.0.8059.39 (Linux)
- Google Chrome for Desktop prior to 155.0.8059.39/.40 (Windows, macOS)
- Chromium-based builds from distributions that include the affected Chromium version
Fixed in
- Google Chrome 155.0.8059.39 (Linux)
- Google Chrome 155.0.8059.39/.40 (Windows, macOS)
- Debian: 155.0.8059.39-1~deb12u1
- openSUSE Tumbleweed: chromium 155.0.8059.39-1.1
- SUSE Package Hub 15 SP7: 155.0.8059.39-bp157.2.241.1
Workaround
No vendor workaround documented. Updating is the fix.
Exploitation
- CISA SSVC: exploitation none, automatable no
- Not listed in CISA's Known Exploited Vulnerabilities catalog
- No public proof of concept or in-the-wild exploitation found in the research
- EPSS is about 0.3% (low likelihood)
Our recommendation
- Update Google Chrome to 155.0.8059.39 or later (155.0.8059.39/.40 on Windows and macOS) on all endpoints and verify the build number at chrome://version.
- Restart browsers after the update, because the new version only takes effect after a restart.
- Refresh snap-based Chromium installs through snapd and update other Chromium-based browsers (for example Edge) to their vendor's fixed build.
- Patch within the normal browser update cycle; this is not an emergency unless exploitation is reported.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Google Chrome Releases: Stable Channel Update for Desktop chromereleases.googleblog.com
- Chromium issue tracker issues.chromium.org
- OSV: DEBIAN-CVE-2026-106193 osv.dev
- SUSE CVE page CVE-2026-106193 www.suse.com
- Ubuntu CVE page CVE-2026-106193 ubuntu.com
- OpenCVE CVE-2026-106193 app.opencve.io
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, 22:14.
Original description (NVD)
Use after free in Parser 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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