CVE-2026-78959: Improper handling of case sensitivity in Google Chrome
Description
CVE-2026-78959 is a medium severity vulnerability in Google Chrome prior to version 152.0.7977.65. It involves improper handling of case sensitivity in the FileSystem component, which could allow a remote attacker to bypass system access restrictions via a crafted HTML page using social engineering techniques. The vulnerability has a CVSS score of 6.5 and requires user interaction to exploit.
CVSS v3.1
Score 6.5medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's FileSystem component arises from improper handling of case sensitivity, allowing a remote attacker to bypass system access restrictions. Exploitation requires the victim to interact with a maliciously crafted HTML page. The issue affects versions before 152.0.7977.65. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality impact, high integrity impact, and no availability impact.
Potential Impact
An attacker can bypass system access restrictions, potentially modifying or injecting unauthorized content, impacting the integrity of the system. There is no confidentiality or availability impact reported. Exploitation requires user interaction via social engineering.
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 detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:05:05.920Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9bcacd9273b49ac6dfd
Added to database: 08/25/2026, 20:23:24 UTC
Last enriched: 09/10/2026, 17:08:57 UTC
Last updated: 10/08/2026, 18:48:48 UTC
Views: 37
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