Vulnerability · Published Apr 26, 2021 · Assigned by Chrome

CVE-2021-21221

Medium 6.5

In plain English

A medium-severity security flaw 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 1.6% (higher than 75% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.6%top 24.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Insufficient validation of untrusted input in Mojo in Google Chrome prior to 90.0.4430.72 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20chromium90.0.4430.72-r0ALPINE-CVE-2021-21221
Alpine:v3.21chromium90.0.4430.72-r0ALPINE-CVE-2021-21221
Alpine:v3.22chromium90.0.4430.72-r0ALPINE-CVE-2021-21221
Alpine:v3.23chromium90.0.4430.72-r0ALPINE-CVE-2021-21221
Alpine:v3.24chromium90.0.4430.72-r0ALPINE-CVE-2021-21221
Alpine:v3.20qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21221
Alpine:v3.21qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21221
Alpine:v3.22qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21221
Alpine:v3.23qt5-qtwebengine5.15.3_git20210510-r0ALPINE-CVE-2021-21221
Debian:12chromium90.0.4430.72-1DEBIAN-CVE-2021-21221
Debian:13chromium90.0.4430.72-1DEBIAN-CVE-2021-21221
Debian:14chromium90.0.4430.72-1DEBIAN-CVE-2021-21221

Affected products (as reported)

VendorProductVersions
Google Chrome unspecified – before 90.0.4430.72

References