CVE-2026-42838

Medium

Description

Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.

SeverityMedium
CVSS5.4
Exploit probability—
ProductMicrosoft Edge Chromium
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-74Injection

How to fix

Update
  • microsoft edge_chromium148.0.3967.55 or later

Affected products

ProductAffected versionsFixed in
microsoft edge_chromiumv < 148.0.3967.55148.0.3967.55

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CVE-2026-42838 · Microsoft Edge Chromium · Dark Radar