CVE-2026-26130: Microsoft ASP.NET Core

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Affected products

• Microsoft ASP.NET Core: from 8.0.0, before 8.0.25 (fixed in 8.0.25); from 9.0.0, before 9.0.14 (fixed in 9.0.14); from 10.0.0, before 10.0.4 (fixed in 10.0.4)

Published 2026-03-10. Last modified 2026-07-15.