Vulnerability · Published May 28, 2026 · Assigned by Chrome
CVE-2026-9907
Medium 4.3
In plain English
A medium-severity out-of-bounds read 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 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 88.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Out of bounds read in Dawn in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data 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-2026-9907 |
| Debian:13 | chromium | 148.0.7778.215-1~deb13u1 | DEBIAN-CVE-2026-9907 |
| Debian:14 | chromium | 148.0.7778.215-1 | DEBIAN-CVE-2026-9907 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N