CVE-2026-17921: Insufficient validation of untrusted input in Google Chrome
CVE-2026-17921 is a vulnerability in Google Chrome prior to version 151.0.7922.72 involving insufficient validation of untrusted input in the navigation component. This flaw allows a remote attacker who has already compromised the renderer process to bypass navigation restrictions using a crafted HTML page. The issue is classified with low severity by Chromium security. No known exploits are reported in the wild. The vendor has published an advisory but has not explicitly stated the remediation level or patch availability in the provided data.
AI Analysis
Technical Summary
This vulnerability in Google Chrome's navigation handling arises from insufficient validation of untrusted input, enabling an attacker with renderer process access to bypass navigation restrictions via crafted HTML content. It affects versions prior to 151.0.7922.72. The Chromium security team rates this issue as low severity. The vendor advisory URL is provided but does not explicitly confirm patch status or remediation level in the input data.
Potential Impact
An attacker who has already compromised the renderer process can bypass navigation restrictions, potentially enabling further malicious actions within the browser context. The impact is limited by the prerequisite that the renderer process is already compromised. No known exploitation in the wild has been reported.
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. Until official confirmation, users should update to version 151.0.7922.72 or later when available to address this issue.
CVE-2026-17921: Insufficient validation of untrusted input in Google Chrome
Description
CVE-2026-17921 is a vulnerability in Google Chrome prior to version 151.0.7922.72 involving insufficient validation of untrusted input in the navigation component. This flaw allows a remote attacker who has already compromised the renderer process to bypass navigation restrictions using a crafted HTML page. The issue is classified with low severity by Chromium security. No known exploits are reported in the wild. The vendor has published an advisory but has not explicitly stated the remediation level or patch availability in the provided data.
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's navigation handling arises from insufficient validation of untrusted input, enabling an attacker with renderer process access to bypass navigation restrictions via crafted HTML content. It affects versions prior to 151.0.7922.72. The Chromium security team rates this issue as low severity. The vendor advisory URL is provided but does not explicitly confirm patch status or remediation level in the input data.
Potential Impact
An attacker who has already compromised the renderer process can bypass navigation restrictions, potentially enabling further malicious actions within the browser context. The impact is limited by the prerequisite that the renderer process is already compromised. No known exploitation in the wild has been reported.
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. Until official confirmation, users should update to version 151.0.7922.72 or later when available to address this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:37:00.896Z
- 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: 6a6aa0a59c2644c7f849ba47
Added to database: 07/30/2026, 00:53:57 UTC
Last enriched: 07/30/2026, 02:25:14 UTC
Last updated: 07/30/2026, 03:12:11 UTC
Views: 2
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