Incorrect Authorization Affecting chromium package, versions [,95.0.4638.54)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Feb 2026
- disclosed24 Feb 2026
- creditDavid Erceg
Introduced: 24 Feb 2026
CVE-2021-37994 (opens in a new tab)How to fix?
Upgrade chromium to version 95.0.4638.54 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization through the CreateNewWindow mojo call in the navigation controller when handling noopener popups from sandboxed frames. An attacker can force a sandbox-escaped download by hosting a crafted HTML page whose sandboxed iframe opens a noopener popup that navigates to a download resource.