What’s Vulnerable › Vulnerabilities
CVE-2026-45646: OData for ASP.NET and ASP.NET Core Denial of Service Vulnerability
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-14 · updated 2026-10-28
- Weakness: CWE-770
Description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Affected products
- Microsoft AspNetCore.OData: before 9.5.0 — fixed in 9.5.0
- Microsoft Odata Web Api: before 7.8.0 — fixed in 7.8.0
- Microsoft AspNetCore.OData: from 9.0.0 before 9.5.0[SX1] — fixed in 9.5.0[SX1]
- Microsoft AspNet.OData: from 7.0.0 before 7.8.0 — fixed in 7.8.0
How to fix
Upgrade to a fixed version: Microsoft AspNetCore.OData 9.5.0; Microsoft Odata Web Api 7.8.0; Microsoft AspNetCore.OData 9.5.0[SX1]; Microsoft AspNet.OData 7.8.0. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-45646 or the next vulnerability affects your stack