Incorrect Authorization Affecting chromium package, versions [,96.0.4664.45)
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-2021-38015 (opens in a new tab)How to fix?
Upgrade chromium to version 96.0.4664.45 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization via the extension messaging activation propagation logic UserActivationState in the extensions component. An attacker can bypass navigation restrictions by tricking a user into installing a malicious extension that sends crafted messages carrying synthetic activation, letting a recipient frame navigate when it otherwise should be blocked.