Vulnerability · Published May 6, 2026 · Assigned by Chrome
CVE-2026-7966
Low 3.1
In plain English
A low-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 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.2%top 87.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Insufficient validation of untrusted input in SiteIsolation in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 148.0.7778.96-1~deb12u1 | DEBIAN-CVE-2026-7966 |
| Debian:13 | chromium | 148.0.7778.96-1~deb13u1 | DEBIAN-CVE-2026-7966 |
| Debian:14 | chromium | 148.0.7778.96-1 | DEBIAN-CVE-2026-7966 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N