Google Chrome: Use-after-free in Tint enables sandbox escape
Summary
A use-after-free vulnerability (CWE-416) in Tint, the WebGPU shader compiler of Google Chrome before 155.0.8059.39, allows a remote attacker to potentially execute arbitrary code outside the browser sandbox. The attacker only needs to lure a user to a crafted HTML page, and no privileges are required. Google rates the Chromium security severity as High and the CVSS score as 9.6 (Critical).
Affected
- Google Chrome versions before 155.0.8059.39, according to the CVE description
- The official CVE record lists an inconsistent range (155.0.8059.39 to < 155.0.8059.39), so verify against Google's advisory
- Chromium-based browsers and Linux distributions that ingest the Chromium fix (for example Debian chromium, SUSE and openSUSE chromium), and Microsoft Edge
Fixed in
- Google Chrome 155.0.8059.39 (Linux) and 155.0.8059.39/.40 (Windows and Mac), according to Google's Stable Channel Update of 6 October 2026. Some third-party reports give different build numbers, so verify them against the Chrome Releases blog.
- Later stable releases include the fix. Check the Chrome Releases blog for the current stable version.
- Debian chromium 155.0.8059.39-1~deb12u1
- Microsoft Edge 155.0.4283.62 or later, according to Tenable
Workaround
- None documented in the sources. Updating is the fix.
- Chrome must be relaunched after the update to take effect.
Exploitation
- Not listed in CISA KEV. CISA SSVC assessment: exploitation none, automatable no, technical impact total.
- No evidence of exploitation in the wild found.
- No public proof of concept found.
- EPSS score 0.00338 (low).
Our recommendation
- Update Google Chrome and all Chromium-based browsers, including Microsoft Edge, to the current stable release on all endpoints.
- Check the installed browser build on every endpoint and enforce auto-update or a managed update policy.
- Check Linux systems for legacy Chromium packages and update them.
- Restart the browser after the update.
- Treat this as urgent because it is a browser sandbox-escape-class bug with a critical score.
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-2026-106281 osv.dev
- Tenable Nessus plugin 366658 (Microsoft Edge) www.tenable.com
- Vulners: SUSECVE-2026-106281 vulners.com
- Vulners: CHAINGUARD CVE-2026-106281 vulners.com
- HOL Guard: CISA ADP Vulnrichment for CVE-2026-106281 hol.org
- Malwarebytes: Update Chrome and ChromeOS to fix critical security issues www.malwarebytes.com
- Google Chrome Enterprise: Update controls 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 30 Oct 2026, 23:16.
Original description (NVD)
Use after free in Tint in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to potentially execute arbitrary code outside 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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