Actively exploited · Published Apr 1, 2026 · Assigned by Chrome
CVE-2026-5281
High 8.8 Exploited
In plain English
A high-severity use-after-free in Chrome from Google. Attackers are actively exploiting it in the wild (listed by CISA on April 1, 2026). The chance it is exploited in the next 30 days is estimated at 13.7% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Apr 15, 2026.
Official description
Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | qt6-qtwebengine | 6.10.1-r14 | ALPINE-CVE-2026-5281 |
| Alpine:v3.24 | qt6-qtwebengine | 6.10.2-r13, 6.11.0-r1 | ALPINE-CVE-2026-5281 |
| Debian:12 | chromium | 146.0.7680.177-1~deb12u1 | DEBIAN-CVE-2026-5281 |
| Debian:13 | chromium | 146.0.7680.177-1~deb13u1 | DEBIAN-CVE-2026-5281 |
| Debian:14 | chromium | 146.0.7680.177-1 | DEBIAN-CVE-2026-5281 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H