Actively exploited · Published Jun 8, 2026 · Assigned by Chrome
CVE-2026-11645
High 8.8 Exploited
In plain English
A high-severity out-of-bounds read in Chrome from Google. Attackers are actively exploiting it in the wild (listed by CISA on June 9, 2026). The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% 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 Jun 23, 2026.
Official description
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 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 | 6.11.1-r3 | ALPINE-CVE-2026-11645 |
| Debian:12 | chromium | 149.0.7827.102-1~deb12u1 | DEBIAN-CVE-2026-11645 |
| Debian:13 | chromium | 149.0.7827.102-1~deb13u1 | DEBIAN-CVE-2026-11645 |
| Debian:14 | chromium | 149.0.7827.102-1 | DEBIAN-CVE-2026-11645 |
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