Vulnerability · Published May 28, 2026 · Assigned by Chrome
CVE-2026-9963
High 7.5
In plain English
A high-severity security flaw 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 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 79.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Uninitialized Use in iOS in Google Chrome on iOS prior to 148.0.7778.216 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 148.0.7778.215-1~deb12u1 | DEBIAN-CVE-2026-9963 |
| Debian:13 | chromium | 148.0.7778.215-1~deb13u1 | DEBIAN-CVE-2026-9963 |
| Debian:14 | chromium | 148.0.7778.215-1 | DEBIAN-CVE-2026-9963 |
Affected products (as reported)
Weakness: CWE-457 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H