CVE-2026-19166
published 2026-08-06CVE-2026-19166: Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted…
PriorityP353critical9.6CVSS 3.1
AVNACLPRNUIRSCCHIHAH
EPSS
0.39%
31.6th percentile
Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 151.0.7922.109 | 151.0.7922.109 | |
| chrome | >= 151.0.7922.109 < 151.0.7922.109 | 151.0.7922.109 | |
| chrome_desktop | — | — |
CVSS provenance
nvdv3.19.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
vendor_redhat9.6CRITICAL
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Chrome
Long Term Support Channel Update for ChromeOS: CVE-2026-19166
vendor_chrome·2026-08-10·CVSS 9.6
CVE-2026-19166 [CRITICAL] Long Term Support Channel Update for ChromeOS: CVE-2026-19166
Long Term Support Channel Update for ChromeOS
CVE-2026-19166
Red Hat
chromium-browser: Google Chrome: Sandbox escape due to use-after-free in Web Authentication
vendor_redhat·2026-08-06·CVSS 9.6
CVE-2026-19166 [CRITICAL] CWE-825 chromium-browser: Google Chrome: Sandbox escape due to use-after-free in Web Authentication
chromium-browser: Google Chrome: Sandbox escape due to use-after-free in Web Authentication
Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
A flaw was found in Web Authentication in Google Chrome. A remote attacker could exploit a use-after-free vulnerability by enticing a user to visit a specially crafted HTML page. This could potentially allow the attacker to escape the browser's security sandbox, leading to further system compromise.
Statement: This is an Important vulnerability in Chromium's Web Authentication component that could allow a remote attacker to escape the browser's sandbox. Exploitation requires user interaction, suc
Chrome
Stable Channel Update for Desktop: CVE-2026-19165
vendor_chrome·2026-08-06
CVE-2026-19165 [HIGH] Stable Channel Update for Desktop: CVE-2026-19165
Stable Channel Update for Desktop
CVE-2026-19165: Use after free in Extensions. Reported by @bean5oup on 2026-07-19 [TBD][ 536584251 ] High CVE-2026-19166: Use after free in Web Authentication
Reported by heesun on 2026-07-20 [N/A][ 536666274 ] High CVE-2026-19167: Integer overflow in GPU
Severity: high
GHSA
Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
ghsa_unreviewed·2026-08-07
CVE-2026-19166 CWE-416 Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.
Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
No detection rules found.
No public exploits indexed.
Rapid7
Patch Tuesday - August 2026
blogs_rapid7·2026-08-11·CVSS 7.2
CVE-2026-68821 [HIGH] Patch Tuesday - August 2026
Microsoft is publishing 421 vulnerabilities on August 2026 Patch Tuesday , including 236 vulnerabilities in Windows. This is lower volume than last month’s record-breaking behemoth, but still one of the largest Patch Tuesday totals ever. There is no reason to suppose that Patch Tuesday will ever return to the lower volumes we saw prior to 2026. Microsoft is aware of exploitation in the wild for one of the vulnerabilities published today, as well as public disclosure for two others, although the Notable CVEs section of the Security Update Guide omits one of these. As usual, browser vulns are not included in the Patch Tuesday count above, but unusually, Microsoft does not appear to have published any desktop browser security patches so far this month.
## Summary charts
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Bugzilla
CVE-2026-19166 chromium: Google Chrome: Sandbox escape due to use-after-free in Web Authentication [epel-all]
bugzilla·2026-08-13·CVSS 9.6
CVE-2026-19166 [CRITICAL] CVE-2026-19166 chromium: Google Chrome: Sandbox escape due to use-after-free in Web Authentication [epel-all]
CVE-2026-19166 chromium: Google Chrome: Sandbox escape due to use-after-free in Web Authentication [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Bugzilla
CVE-2026-19166 chromium: Google Chrome: Sandbox escape due to use-after-free in Web Authentication [fedora-all]
bugzilla·2026-08-13·CVSS 9.6
CVE-2026-19166 [CRITICAL] CVE-2026-19166 chromium: Google Chrome: Sandbox escape due to use-after-free in Web Authentication [fedora-all]
CVE-2026-19166 chromium: Google Chrome: Sandbox escape due to use-after-free in Web Authentication [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Bugzilla
CVE-2026-19166 chromium-browser: Google Chrome: Sandbox escape due to use-after-free in Web Authentication
bugzilla·2026-08-06·CVSS 9.6
CVE-2026-19166 [CRITICAL] CVE-2026-19166 chromium-browser: Google Chrome: Sandbox escape due to use-after-free in Web Authentication
CVE-2026-19166 chromium-browser: Google Chrome: Sandbox escape due to use-after-free in Web Authentication
Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
2026-08-06
Published