Information Disclosure Vulnerability in Microsoft Edge by Microsoft
CVE-2026-58291

6.1MEDIUM

Key Information:

Vendor

Microsoft
Status
Microsoft Edge (chromium-based)
Vendor
CVE Published:
3 July 2026

What is CVE-2026-58291?

An information disclosure vulnerability exists in Microsoft Edge (Chromium-based) which could allow unauthorized attackers to gain access to sensitive information over a network. This flaw arises from improper handling of resources after their expiration or release, potentially leading to unintentional exposure of data. Users are encouraged to apply the latest security updates to mitigate associated risks.

Affected Version(s)

Microsoft Edge (Chromium-based) 1.0.0.0 < 150.0.4078.48

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.