Vulnerability · Published Apr 1, 2026 · Assigned by Chrome
CVE-2026-5273
Medium 6.3
In plain English
A medium-severity use-after-free 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 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.4%top 70.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Use after free in CSS in Google Chrome prior to 146.0.7680.178 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 |
|---|---|---|---|
| Alpine:v3.24 | qt6-qtwebengine | 6.11.0-r1 | ALPINE-CVE-2026-5273 |
| Debian:12 | chromium | 146.0.7680.177-1~deb12u1 | DEBIAN-CVE-2026-5273 |
| Debian:13 | chromium | 146.0.7680.177-1~deb13u1 | DEBIAN-CVE-2026-5273 |
| Debian:14 | chromium | 146.0.7680.177-1 | DEBIAN-CVE-2026-5273 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L