Vulnerability · Published Jul 20, 2026 · Assigned by Chrome
CVE-2026-15903
High 8.8
In plain English
A high-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 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 64.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Out of bounds read and write in V8 in Google Chrome prior to 150.0.7871.128 allowed a remote attacker 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 | 150.0.7871.181-1~deb12u1 | DEBIAN-CVE-2026-15903 |
| Debian:13 | chromium | 150.0.7871.181-1~deb13u1 | DEBIAN-CVE-2026-15903 |
| Debian:14 | chromium | 150.0.7871.181-1 | DEBIAN-CVE-2026-15903 |
Affected products (as reported)
Weakness: CWE-125, CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H