CVE-2026-79178: Incorrect authorization in Google Chrome
Description
CVE-2026-79178 is a medium severity vulnerability in Google Chrome's Web Authentication feature that allows a remote attacker to bypass the web origin policy via a crafted HTML page. This affects versions prior to 152.0.7977.65. The vulnerability involves incorrect authorization in the handling of Passkeys and Security Keys. No known exploits are reported in the wild. The CVSS score is 4.3, indicating a limited impact primarily on confidentiality without affecting integrity or availability.
CVSS v3.1
Score 4.3medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome prior to version 152.0.7977.65 involves incorrect authorization in the Web Authentication component, specifically related to Passkeys and Security Keys. It allows a remote attacker to bypass the web origin policy by using a crafted HTML page, potentially leading to limited information disclosure. The issue is tracked as CVE-2026-79178 with a CVSS v3.1 base score of 4.3 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N).
Potential Impact
The impact is limited to partial confidentiality loss due to bypassing the web origin policy, which could allow an attacker to access some information that should be restricted by origin boundaries. There is no impact on integrity or availability. No active exploitation in the wild has been reported.
Mitigation Recommendations
A fix is available in Google Chrome version 152.0.7977.65. Users and administrators should update to this version or later to remediate the vulnerability. The vendor advisory linked provides the official update information. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:10:55.419Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9d9acd9273b49ac7159
Added to database: 08/25/2026, 20:23:53 UTC
Last enriched: 09/10/2026, 14:39:43 UTC
Last updated: 10/08/2026, 18:48:48 UTC
Views: 36
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