CVE-2026-78908: Information leak in Google Chrome
Description
An information leak vulnerability exists in the Canvas component of Google Chrome prior to version 152.0.7977.65. This flaw allows a remote attacker to bypass the web origin policy by using a crafted HTML page. The vulnerability has a medium severity rating with a CVSS score of 4.3. A fix is available in Chrome version 152.0.7977.65.
CVSS v3.1
Score 4.3medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-78908 is an information leak vulnerability in the Canvas feature of Google Chrome before version 152.0.7977.65. The vulnerability enables a remote attacker to bypass the web origin policy by delivering a specially crafted HTML page, potentially exposing information across origins. The Chromium security team has rated this issue as high severity internally, but the CVSS score is 4.3 (medium). The vulnerability is addressed in Chrome version 152.0.7977.65.
Potential Impact
The vulnerability allows an attacker to bypass the web origin policy, which can lead to unauthorized information disclosure from web pages. However, it does not impact integrity or availability. The CVSS score of 4.3 reflects limited confidentiality impact without privilege requirements or complex attack conditions.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 152.0.7977.65 or later to remediate this vulnerability. The vendor advisory confirms that this version contains the fix. No additional mitigations are required once the update is applied.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:04:03.498Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9b7acd9273b49ac6d75
Added to database: 08/25/2026, 20:23:19 UTC
Last enriched: 09/10/2026, 17:23:38 UTC
Last updated: 10/10/2026, 18:48:22 UTC
Views: 44
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