CVE-2026-56170: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft .NET 10.0
CVE-2026-56170 is a high-severity vulnerability in Microsoft .NET 10.0 and related versions where allocation of resources without limits or throttling in ASP.NET Core can allow an unauthorized attacker to cause a denial of service over a network. This vulnerability does not impact confidentiality or integrity but can disrupt availability. An official fix is available to remediate this issue.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-770, involves the allocation of resources without limits or throttling in ASP.NET Core within Microsoft .NET 10.0 and certain 8.x and 9.x versions. An unauthorized attacker can exploit this flaw remotely (network attack vector) without any privileges or user interaction to cause a denial of service condition by exhausting resources. The CVSS 3.1 base score is 7.5 (high severity), reflecting the impact on availability only. The vendor has issued an official fix to address this issue.
Potential Impact
The vulnerability allows an attacker to deny service to legitimate users by exhausting system resources in ASP.NET Core applications running on affected .NET versions. There is no impact on confidentiality or integrity. The attack can be performed remotely without authentication or user interaction.
Mitigation Recommendations
An official fix is available for this vulnerability. Users and administrators should apply the vendor-provided patches to affected .NET versions promptly to mitigate the risk of denial of service. Since this is not a cloud service, remediation depends on applying updates to affected systems.
CVE-2026-56170: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft .NET 10.0
Description
CVE-2026-56170 is a high-severity vulnerability in Microsoft .NET 10.0 and related versions where allocation of resources without limits or throttling in ASP.NET Core can allow an unauthorized attacker to cause a denial of service over a network. This vulnerability does not impact confidentiality or integrity but can disrupt availability. An official fix is available to remediate this issue.
CVSS v3.1
Score 7.5high
Affected software
pkg:deb/ubuntu/[email protected]~22.04.1?arch=source&distro=jammypkg:deb/ubuntu/[email protected]~22.04.1?arch=source&distro=jammypkg:deb/ubuntu/[email protected]~22.04.1?arch=source&distro=jammypkg:deb/ubuntu/[email protected]~24.04.1?arch=source&distro=noblepkg:deb/ubuntu/[email protected]~24.04.1?arch=source&distro=noblepkg:deb/ubuntu/[email protected]~25.10.1?arch=source&distro=questingpkg:deb/ubuntu/[email protected]~25.10.1?arch=source&distro=questingpkg:deb/ubuntu/[email protected]~25.10.1?arch=source&distro=questingpkg:deb/ubuntu/[email protected]~26.04.1?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-770, involves the allocation of resources without limits or throttling in ASP.NET Core within Microsoft .NET 10.0 and certain 8.x and 9.x versions. An unauthorized attacker can exploit this flaw remotely (network attack vector) without any privileges or user interaction to cause a denial of service condition by exhausting resources. The CVSS 3.1 base score is 7.5 (high severity), reflecting the impact on availability only. The vendor has issued an official fix to address this issue.
Potential Impact
The vulnerability allows an attacker to deny service to legitimate users by exhausting system resources in ASP.NET Core applications running on affected .NET versions. There is no impact on confidentiality or integrity. The attack can be performed remotely without authentication or user interaction.
Mitigation Recommendations
An official fix is available for this vulnerability. Users and administrators should apply the vendor-provided patches to affected .NET versions promptly to mitigate the risk of denial of service. Since this is not a cloud service, remediation depends on applying updates to affected systems.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-56170
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
- Cvss Version
- 3.1
- Remediation Level
- official-fix
- State
- PUBLISHED
Threat ID: 6a5e7a702a4a8d59899de92b
Added to database: 07/20/2026, 19:43:44 UTC
Last enriched: 09/12/2026, 10:33:33 UTC
Last updated: 09/12/2026, 22:01:34 UTC
Views: 31
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