CVE-2026-57099 ASP.NET Core Denial of Service Vulnerability
An unauthorized attacker can cause a denial of service in ASP.NET Core OData by exploiting resource allocation limits.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57099?
CVE-2026-57099 is a high-severity denial of service vulnerability in Microsoft AspNetCore.OData, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Weakness: CWE-770
Which versions are affected by CVE-2026-57099?
It affects 1 product.
Products include Microsoft Asp.net Core Odata.
How do I fix CVE-2026-57099?
No fix has been published for CVE-2026-57099 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-57099 being exploited?
There is no known exploitation of CVE-2026-57099 in the wild and no public exploit code.
Other vulnerabilities in Microsoft AspNetCore.OData
Sources
Also known as GHSA-7whw-q9mg-h337.