Vulnerability · Published Apr 23, 2026 · Assigned by Chrome
CVE-2026-6921
High 8.3
In plain English
A high-severity race condition 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 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.2%top 91.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Race in GPU in Google Chrome on Windows prior to 147.0.7727.117 allowed a remote attacker to potentially perform a sandbox escape via a crafted video file. (Chromium security severity: Medium)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 147.0.7727.116-1~deb12u1 | DEBIAN-CVE-2026-6921 |
| Debian:13 | chromium | 147.0.7727.116-1~deb13u1 | DEBIAN-CVE-2026-6921 |
Affected products (as reported)
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H