Vulnerability · Published Jun 8, 2026 · Assigned by Chrome
CVE-2026-11659
Critical 9.6
In plain English
A critical-severity improper input validation in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.6Critical
Exploit odds (30 days)0.3%top 83.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Integer overflow in UI in Google Chrome on Linux prior to 149.0.7827.103 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 149.0.7827.102-1~deb12u1 | DEBIAN-CVE-2026-11659 |
| Debian:13 | chromium | 149.0.7827.102-1~deb13u1 | DEBIAN-CVE-2026-11659 |
| Debian:14 | chromium | 149.0.7827.102-1 | DEBIAN-CVE-2026-11659 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H