CVE-2026-17786

Analyzed Analyzed - Analysis Complete

Insufficient Input Validation in Google Chrome DevTools

Publication date: 2026-07-30

Last updated on: 2026-08-04

Assigner: Chrome

Description

Insufficient validation of untrusted input in DevTools in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to perform privilege escalation via a crafted Chrome Extension. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-30

Last Modified

2026-08-04

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-17786

EUVD

EUVD-2026-50735

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.72 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability is a privilege escalation issue in Google Chrome's DevTools. It occurs due to insufficient validation of untrusted input, allowing an attacker who tricks a user into installing a malicious extension to gain elevated privileges.

Detection Guidance

This vulnerability involves insufficient validation in Chrome's DevTools that could allow privilege escalation via malicious extensions. Detection requires checking Chrome version and reviewing installed extensions for suspicious activity. Use chrome://version to check your Chrome version and chrome://extensions to inspect installed extensions. Ensure your Chrome version is 151.0.7922.72 or later to avoid this issue.

Impact Analysis

If exploited, this vulnerability could allow an attacker to perform actions on your system with higher privileges than intended, potentially leading to unauthorized access or control over your Chrome browser or system.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by enabling unauthorized privilege escalation through malicious extensions. If exploited, it may lead to unauthorized access to sensitive data, violating confidentiality requirements under these regulations.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.72 or later to address the vulnerability.

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