MicrosoftCVE-2026-57978
Microsoft Edge (Chromium-based): spoofing
Medium5.4CVE-2026-57978 · Published Jul 26, 2026 · updated Aug 3, 2026
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft Edge (Chromium-based) Product | >= 1.0.0.0, < 150.0.4078.99 | 150.0.4078.99 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-346
More Microsoft advisories
All Microsoft| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 26 | Microsoft Edge (Chromium-based): origin validation error | High7.4 | 150.0.4078.99 |
| Jul 26 | Microsoft Edge (Chromium-based): exposed files | High7.4 | No fix yet |
| Jul 24 | Microsoft Azure Portal: improper authorization | Critical9.3 | No fix yet |
| Jul 24 | Microsoft Azure App Service for Linux: improper access control | Critical10.0 | No fix yet |
| Jul 24 | Microsoft Purview Data Governance: server-side request forgery | Critical10.0 | No fix yet |
| Jul 24 | Microsoft Azure Kubernetes Service: missing authentication | Critical10.0 | No fix yet |