CVE-2026-57989
Received Received - Intake

Microsoft Edge Chromium Origin Validation Information Disclosure

Publication date: 2026-07-26

Last updated on: 2026-07-26

Assigner: Microsoft Corporation

Description
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

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Meta Information

Published
2026-07-26
Last Modified
2026-07-26
Generated
2026-07-27
AI Q&A
2026-07-26
EPSS Evaluated
N/A
NVD
CVE-2026-57989
EUVD
EUVD-2026-49058

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft edge *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-346 The product does not properly verify that the source of data or communication is valid.

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Executive Summary

This vulnerability is an origin validation error in Microsoft Edge (Chromium-based). It allows an unauthorized attacker to disclose information over a network without needing special access or user interaction.

Impact Analysis

An attacker could exploit this to access sensitive data transmitted over the network, potentially leading to unauthorized information disclosure. This may include personal or confidential data depending on usage.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations must address it to maintain compliance.

Mitigation Strategies

Update Microsoft Edge to the latest version as soon as possible to patch the origin validation error. Monitor Microsoft's security advisories for additional guidance.

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