CVE-2026-78897: Missing authorization in Google Chrome
Description
CVE-2026-78897 is a vulnerability in Google Chrome prior to version 152.0.7977.65 involving missing authorization in the BrowserTag component. This flaw allows a remote attacker, using social engineering and a crafted Chrome extension, to obtain sensitive information without proper authorization. The vulnerability has a medium severity rating with a CVSS score of 6.5.
CVSS v3.1
Score 6.5medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from missing authorization checks in the BrowserTag feature of Google Chrome versions before 152.0.7977.65. An attacker can exploit this by tricking a user into installing a malicious Chrome extension, which then can access sensitive information without proper permission validation. The issue is classified with a CVSS 3.1 base score of 6.5, indicating a medium severity level. The vulnerability does not require privileges and involves user interaction (UI:R).
Potential Impact
Successful exploitation can lead to unauthorized disclosure of sensitive information from the affected Chrome browser. The attacker does not gain integrity or availability impact but can compromise confidentiality. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fixed version is available: Google Chrome 152.0.7977.65 addresses this vulnerability. Users and administrators should update to this version or later to remediate the issue. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html for details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:03:55.070Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9b5acd9273b49ac6d4d
Added to database: 08/25/2026, 20:23:17 UTC
Last enriched: 09/10/2026, 17:23:52 UTC
Last updated: 10/10/2026, 06:48:19 UTC
Views: 44
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.