CVE-2026-78893: Information leak in Google Chrome
Description
An information leak vulnerability exists in the QUIC protocol implementation in Google Chrome versions prior to 152.0.7977.65. This flaw allows a remote attacker to leak sensitive information by tricking a user into visiting a crafted HTML page. The vulnerability has a medium severity rating and affects confidentiality but does not impact integrity or availability.
CVSS v3.1
Score 6.5medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-78893 is an information leak vulnerability in the QUIC protocol within Google Chrome before version 152.0.7977.65. A remote attacker can exploit this flaw by delivering a specially crafted HTML page to a victim, causing sensitive information to be leaked. The vulnerability has a CVSS 3.1 base score of 6.5, indicating a medium severity level. The attack vector is network-based with low attack complexity and requires no privileges but does require user interaction. The vulnerability affects confidentiality but not integrity or availability.
Potential Impact
Successful exploitation can lead to unauthorized disclosure of sensitive information from the affected user's browser session. There is no impact on data integrity or system availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Google has released an official fix in Chrome version 152.0.7977.65. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:03:51.951Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9b5acd9273b49ac6d45
Added to database: 08/25/2026, 20:23:17 UTC
Last enriched: 09/10/2026, 17:38:33 UTC
Last updated: 10/09/2026, 18:48:23 UTC
Views: 55
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