CVE-2026-17909: Insufficient validation of untrusted input in Google Chrome
CVE-2026-17909 is a medium severity vulnerability in Google Chrome's Isolated Web Apps prior to version 151.0.7922.72. It involves insufficient validation of untrusted input, which could allow a remote attacker to leak cross-origin data via malicious network traffic. The vulnerability does not impact integrity or availability, only confidentiality to a limited extent. No known exploits are reported in the wild. A fixed version 151.0.7922.72 is available.
AI Analysis
Technical Summary
This vulnerability in Google Chrome affects the Isolated Web Apps feature by insufficiently validating untrusted input. This flaw allows a remote attacker to leak cross-origin data through crafted network traffic. The issue is addressed in Chrome version 151.0.7922.72. The CVSS 3.1 base score is 5.3 (medium), reflecting network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality impact.
Potential Impact
An attacker can remotely cause leakage of cross-origin data, potentially exposing sensitive information from other origins. There is no impact on data integrity or system availability. The confidentiality impact is limited, consistent with the CVSS score of 5.3.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 151.0.7922.72 or later to remediate this vulnerability. The vendor advisory confirms the availability of this update. No additional mitigation steps are indicated.
CVE-2026-17909: Insufficient validation of untrusted input in Google Chrome
Description
CVE-2026-17909 is a medium severity vulnerability in Google Chrome's Isolated Web Apps prior to version 151.0.7922.72. It involves insufficient validation of untrusted input, which could allow a remote attacker to leak cross-origin data via malicious network traffic. The vulnerability does not impact integrity or availability, only confidentiality to a limited extent. No known exploits are reported in the wild. A fixed version 151.0.7922.72 is available.
CVSS v3.1
Score 5.3medium
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome affects the Isolated Web Apps feature by insufficiently validating untrusted input. This flaw allows a remote attacker to leak cross-origin data through crafted network traffic. The issue is addressed in Chrome version 151.0.7922.72. The CVSS 3.1 base score is 5.3 (medium), reflecting network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality impact.
Potential Impact
An attacker can remotely cause leakage of cross-origin data, potentially exposing sensitive information from other origins. There is no impact on data integrity or system availability. The confidentiality impact is limited, consistent with the CVSS score of 5.3.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 151.0.7922.72 or later to remediate this vulnerability. The vendor advisory confirms the availability of this update. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:36:56.688Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html","vendor":"Google"}]
Threat ID: 6a6aa0a29c2644c7f849b95c
Added to database: 07/30/2026, 00:53:54 UTC
Last enriched: 08/06/2026, 17:23:01 UTC
Last updated: 09/11/2026, 22:08:25 UTC
Views: 42
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