CVE-2026-17786: Insufficient validation of untrusted input in Google Chrome
A vulnerability in Google Chrome's DevTools prior to version 151.0.7922.72 allows privilege escalation via a malicious Chrome extension due to insufficient validation of untrusted input. This flaw requires user interaction to install a crafted extension. The issue has a high severity rating with a CVSS score of 8.8. A vendor advisory confirms the existence of this vulnerability and the availability of an update.
AI Analysis
Technical Summary
CVE-2026-17786 is a security vulnerability in Google Chrome's DevTools component affecting versions before 151.0.7922.72. It involves insufficient validation of untrusted input, which can be exploited by an attacker who convinces a user to install a malicious Chrome extension. Successful exploitation results in privilege escalation within the browser context. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high severity. Google has published a stable channel update addressing this issue.
Potential Impact
An attacker who persuades a user to install a malicious Chrome extension can escalate privileges within the browser, potentially leading to full compromise of the user's browser environment. The vulnerability impacts confidentiality, integrity, and availability (all rated high in CVSS). There are no known exploits in the wild at this time.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 151.0.7922.72 or later, as this version contains the fix for the vulnerability. The vendor advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html confirms the availability of this update. No other mitigations are specified.
CVE-2026-17786: Insufficient validation of untrusted input in Google Chrome
Description
A vulnerability in Google Chrome's DevTools prior to version 151.0.7922.72 allows privilege escalation via a malicious Chrome extension due to insufficient validation of untrusted input. This flaw requires user interaction to install a crafted extension. The issue has a high severity rating with a CVSS score of 8.8. A vendor advisory confirms the existence of this vulnerability and the availability of an update.
CVSS v3.1
Score 8.8high
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17786 is a security vulnerability in Google Chrome's DevTools component affecting versions before 151.0.7922.72. It involves insufficient validation of untrusted input, which can be exploited by an attacker who convinces a user to install a malicious Chrome extension. Successful exploitation results in privilege escalation within the browser context. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high severity. Google has published a stable channel update addressing this issue.
Potential Impact
An attacker who persuades a user to install a malicious Chrome extension can escalate privileges within the browser, potentially leading to full compromise of the user's browser environment. The vulnerability impacts confidentiality, integrity, and availability (all rated high in CVSS). There are no known exploits in the wild at this time.
Mitigation Recommendations
Users and administrators should update Google Chrome to version 151.0.7922.72 or later, as this version contains the fix for the vulnerability. The vendor advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html confirms the availability of this update. No other mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:34:45.567Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html","vendor":"Google"}]
Threat ID: 6a6aa0919c2644c7f849b244
Added to database: 07/30/2026, 00:53:37 UTC
Last enriched: 08/06/2026, 17:01:46 UTC
Last updated: 09/12/2026, 22:01:31 UTC
Views: 53
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