CVE-2025-9866 Affecting chromium package, versions <140.0.7339.80-r0
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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- published1 Jul 2026
- disclosed3 Sept 2025
Introduced: 3 Sep 2025
CVE-2025-9866 (opens in a new tab)How to fix?
Upgrade Wolfi chromium to version 140.0.7339.80-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream chromium package and not the chromium package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)