CVE-2026-17858: Uninitialized Use in Google Chrome
CVE-2026-17858 is a medium severity vulnerability in Google Chrome on Windows involving uninitialized use in the WebNN component. This flaw allows a remote attacker to leak cross-origin data by crafting a malicious HTML page. The issue affects Chrome versions prior to 151.0.7922.72. No CVSS score is provided, and no explicit patch or remediation level is stated in the available data. The vendor advisory linked corresponds to a stable channel update but does not explicitly confirm the patch status for this vulnerability.
AI Analysis
Technical Summary
An uninitialized use vulnerability exists in the WebNN component of Google Chrome on Windows platforms prior to version 151.0.7922.72. This vulnerability enables a remote attacker to leak cross-origin data by delivering a specially crafted HTML page. The vulnerability is classified with medium severity by Chromium security. There is no CVSS score available, and the vendor advisory linked does not explicitly confirm the remediation status. The affected version is exactly 151.0.7922.72, implying versions before this are vulnerable.
Potential Impact
Successful exploitation of this vulnerability can lead to unauthorized disclosure of cross-origin data, which may compromise user privacy and data confidentiality. The impact is limited to data leakage and does not indicate code execution or system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html for current remediation guidance. Users and administrators should update Google Chrome to the latest stable version once confirmed to include the fix for this vulnerability.
CVE-2026-17858: Uninitialized Use in Google Chrome
Description
CVE-2026-17858 is a medium severity vulnerability in Google Chrome on Windows involving uninitialized use in the WebNN component. This flaw allows a remote attacker to leak cross-origin data by crafting a malicious HTML page. The issue affects Chrome versions prior to 151.0.7922.72. No CVSS score is provided, and no explicit patch or remediation level is stated in the available data. The vendor advisory linked corresponds to a stable channel update but does not explicitly confirm the patch status for this vulnerability.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
An uninitialized use vulnerability exists in the WebNN component of Google Chrome on Windows platforms prior to version 151.0.7922.72. This vulnerability enables a remote attacker to leak cross-origin data by delivering a specially crafted HTML page. The vulnerability is classified with medium severity by Chromium security. There is no CVSS score available, and the vendor advisory linked does not explicitly confirm the remediation status. The affected version is exactly 151.0.7922.72, implying versions before this are vulnerable.
Potential Impact
Successful exploitation of this vulnerability can lead to unauthorized disclosure of cross-origin data, which may compromise user privacy and data confidentiality. The impact is limited to data leakage and does not indicate code execution or system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html for current remediation guidance. Users and administrators should update Google Chrome to the latest stable version once confirmed to include the fix for this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:35:05.877Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html","vendor":"Google"}]
Threat ID: 6a6aa09b9c2644c7f849b708
Added to database: 07/30/2026, 00:53:47 UTC
Last enriched: 07/30/2026, 03:25:03 UTC
Last updated: 07/30/2026, 03:25:03 UTC
Views: 2
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