CVE-2026-57099: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft AspNetCore.OData
Description
CVE-2026-57099 is a high-severity vulnerability in Microsoft AspNetCore.OData where allocation of resources occurs without limits or throttling. This flaw allows an unauthorized attacker to cause a denial of service over a network by exhausting resources. An official fix is available from Microsoft.
CVSS v3.1
Score 7.5high
Affected software
Microsoft
AspNetCore.OData
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-57099 in Microsoft AspNetCore.OData involves allocation of resources without limits or throttling (CWE-770). This can be exploited by an unauthorized attacker to cause a denial of service (DoS) condition over a network. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and an impact limited to availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker can remotely trigger excessive resource allocation in AspNetCore.OData, leading to denial of service by exhausting system resources. There is no impact on confidentiality or integrity, but availability is severely affected.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57099 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-23T18:29:51.054Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57099","vendor":"Microsoft"}]
Threat ID: 6aa044c4acd9273b49fa5fc1
Added to database: 09/08/2026, 17:24:20 UTC
Last enriched: 10/16/2026, 20:39:44 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 32
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