CVE-2026-79034: Information leak in Google Chrome
Description
CVE-2026-79034 is an information leak vulnerability in the Cross-Origin Resource Sharing (CORS) implementation of Google Chrome prior to version 152.0.7977.65. It allows a remote attacker who has compromised the renderer process to leak cross-origin data via a crafted HTML page. The vulnerability has a low severity rating with a CVSS score of 3.1.
CVSS v3.1
Score 3.1low
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's CORS handling allows an attacker with control over the renderer process to leak data from other origins by crafting a malicious HTML page. The issue affects versions before 152.0.7977.65 and was assigned a medium security severity by Chromium but rated low severity by CVSS. The flaw does not impact integrity or availability, only confidentiality, and requires user interaction with high attack complexity.
Potential Impact
An attacker who has already compromised the renderer process can exploit this vulnerability to leak cross-origin data, potentially exposing sensitive information from other web origins. There is no impact on data integrity or availability. The attack requires user interaction and has a high complexity, limiting the ease of exploitation.
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. 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
- 2026-08-25T06:08:03.809Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9c7acd9273b49ac6f4f
Added to database: 08/25/2026, 20:23:35 UTC
Last enriched: 09/10/2026, 15:50:58 UTC
Last updated: 10/08/2026, 06:48:19 UTC
Views: 29
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.