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High severity · published Mar 10, 2026
CVE-2026-26130
ASP.NET Core Denial of Service Vulnerability
7.5
CVSS
3%
EPSS
No
On KEV
Description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
ASP.NET Core 10.0 · Microsoft
10.0 before 10.0.4 · source: vendor
AC
ASP.NET Core 8.0 · Microsoft
8.0 before 8.0.25 · source: vendor
AC
ASP.NET Core 9.0 · Microsoft
9.0 before 9.0.14 · source: vendor
AC
Asp.net Core · Microsoft
8.0.0 before 8.0.25; 9.0.0 before 9.0.14; 10.0.0 before 10.0.4 · source: NVD
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 9.4 Extended Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 9.6 Extended Update Support · Red Hat
All versions, or not specified · source: CISA
Affected product
AC
ASP.NET Core 10.0
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26130
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26130
Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26130
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10082
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10083
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10084
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10085
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10091
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