CVE-2025-9866

Description

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)

PUBLISHED Reserved 2025-09-02 | Published 2025-09-03 | Updated 2025-09-04 | Assigner Chrome

Problem types

Inappropriate implementation

Product status

References

chromereleases.googleblog.com/...nel-update-for-desktop.html

issues.chromium.org/issues/379337758

cve.org (CVE-2025-9866)

nvd.nist.gov (CVE-2025-9866)

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