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MEDIUM · 6.1

CVE-2026-58291

Operation on a resource after expiration or release in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

Vulnerability Description

Operation on a resource after expiration or release in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftEdge Chromium< 150.0.4078.48

Related Weaknesses (CWE)

CWE-672

References

FAQ

What is CVE-2026-58291?

CVE-2026-58291 is a vulnerability with a CVSS score of 6.1 (MEDIUM). Operation on a resource after expiration or release in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

How severe is CVE-2026-58291?

CVE-2026-58291 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-58291?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Edge Chromium.