Exposure of Sensitive System Information to an Unauthorized Control Sphere Affecting chromium package, versions [,145.0.7632.45)
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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- published12 Feb 2026
- disclosed11 Feb 2026
- creditBrendan Draper
Introduced: 11 Feb 2026
CVE-2026-2317 (opens in a new tab)How to fix?
Upgrade chromium to version 145.0.7632.45 or higher.
Overview
Affected versions of this package are vulnerable to Exposure of Sensitive System Information to an Unauthorized Control Sphere via the KeyframeEffect constructor in the Animation component keyframe_effect.cc. An attacker can leak cross-origin data by getting a user to open a crafted HTML page that creates or copies KeyframeEffect instances whose effect target resolves to a node inside the user-agent shadow DOM.