CVE-2026-106243: Incomplete cleanup in Google Chrome
Description
A vulnerability in Google Chrome prior to version 155.0.8059.39 involves incomplete cleanup in the Proxy Auth component. This flaw allows an adjacent attacker to obtain sensitive information through crafted network traffic. The issue has a medium severity rating with a CVSS score of 5.3.
CVSS v3.1
Score 5.3medium
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-106243 is a vulnerability in Google Chrome's Proxy Auth mechanism before version 155.0.8059.39. Due to incomplete cleanup, an adjacent attacker can exploit crafted network traffic to access sensitive information. The vulnerability is rated medium severity with a CVSS 3.1 score of 5.3, reflecting a high impact on confidentiality but requiring high attack complexity and no privileges or user interaction.
Potential Impact
The vulnerability allows an adjacent attacker to obtain sensitive information from the affected Chrome browser. There is no indication of impact on integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available in Google Chrome version 155.0.8059.39. 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/2026/10/stable-channel-update-for-desktop_086471744.html for details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-10-06T16:33:13.409Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","vendor":"Google"}]
Threat ID: 6ac5463f2cdf04f656d49d60
Added to database: 10/06/2026, 19:04:31 UTC
Last enriched: 10/06/2026, 22:18:46 UTC
Last updated: 10/07/2026, 02:48:11 UTC
Views: 4
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