CVE-2026-70159

ASP.NET Core Denial of Service Vulnerability

State: Published
Severity: 7.5 High
Published: Oct 13, 2026
Updated: Oct 31, 2026
Reserved: Aug 3, 2026

Description

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

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	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	microsoft

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
Microsoft Visual Studio 2022 version 17.14Microsoft	17.14.0 to before 17.14.42Affected
Microsoft Visual Studio 2026 version 18.10Microsoft	18.10.0 to before 18.10.4Affected
Microsoft.AspNetCore.SignalR.CommonMicrosoft	10.0.0 to before 10.0.13Affected
Microsoft.AspNetCore.SignalR.CoreMicrosoft	1.0.0 to before 1.2.14Affected

References

ASP.NET Core Denial of Service Vulnerabilityvendor-advisorypatch

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