CVE-2026-78991: Race condition in Google Chrome
Description
A race condition vulnerability exists in the WebProtect component of Google Chrome prior to version 152.0.7977.65. This flaw allows a remote attacker who has compromised the renderer process to obtain sensitive information by using a specially crafted HTML page. The vulnerability has a medium severity rating and a CVSS score of 5.3. Google has released an update in version 152.0.7977.65 to address this issue.
CVSS v3.1
Score 5.3medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-78991 is a race condition vulnerability in the WebProtect feature of Google Chrome before version 152.0.7977.65. An attacker with control over the renderer process can exploit this flaw via a crafted HTML page to access sensitive information. The vulnerability is rated medium severity with a CVSS 3.1 base score of 5.3 (AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N). The vendor has published a stable channel update fixing this issue in Chrome version 152.0.7977.65.
Potential Impact
Successful exploitation allows a remote attacker who has already compromised the renderer process to obtain sensitive information from the browser. The integrity and availability of the system are not impacted, but confidentiality is compromised. The attack requires user interaction (UI:R) and has a high attack complexity (AC:H).
Mitigation Recommendations
Users and administrators should update Google Chrome to version 152.0.7977.65 or later to remediate this vulnerability. This update contains the official fix for the race condition in WebProtect. No additional mitigations are specified by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:07:03.452Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9c2acd9273b49ac6ea1
Added to database: 08/25/2026, 20:23:30 UTC
Last enriched: 09/10/2026, 16:52:31 UTC
Last updated: 10/10/2026, 18:48:22 UTC
Views: 33
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