Vulnerability · Published Sep 8, 2026 · Assigned by microsoft
CVE-2026-57099ASP.NET Core Denial of Service Vulnerability
High 7.5
In plain English
A high-severity resource allocation without limits in AspNetCore.OData from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.2%top 32.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | AspNetCore.OData | 9.0.0 – before 7.8.1 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
References
- ASP.NET Core Denial of Service Vulnerability vendor-advisory, patch