High 7.5Published Mar 10, 2026

CVE-2026-26130ASP.NET Core Denial of Service Vulnerability

Updated under an hour ago (Oct 27, 2026, 8:30 PM ET)

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It affects Microsoft ASP.NET Core 10.0 and 6 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Microsoft ASP.NET Core 10.0

Exploited in the last 30 days

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

CVSS: 7.5 HIGH (v3.1, CNA)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
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: microsoft
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft ASP.NET Core 10.0 microsoft:asp.net_core_10.0 (from the name)	from 10.0 before 10.0.4	CNA record
Microsoft ASP.NET Core 8.0 microsoft:asp.net_core_8.0 (from the name)	from 8.0 before 8.0.25	CNA record
Microsoft ASP.NET Core 9.0 microsoft:asp.net_core_9.0 (from the name)	from 9.0 before 9.0.14	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:9.0.115-1.el10_1 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus	from 0:9.0.115-1.el10_0 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support redhat:rhel_eus	from 0:8.0.125-1.el9_4 not affected	CISA ADP
microsoft asp.net_core microsoft:asp.net_core	from 8.0.0 before 8.0.25; from 9.0.0 before 9.0.14; from 10.0.0 before 10.0.4	NVD

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26130	vendor-advisory, patch
https://access.redhat.com/errata/RHSA-2026:10082
https://access.redhat.com/errata/RHSA-2026:10083
https://access.redhat.com/errata/RHSA-2026:10084
https://access.redhat.com/errata/RHSA-2026:10085
https://access.redhat.com/errata/RHSA-2026:10091
https://access.redhat.com/errata/RHSA-2026:4443
https://access.redhat.com/errata/RHSA-2026:4445
https://access.redhat.com/errata/RHSA-2026:4450
https://access.redhat.com/errata/RHSA-2026:4451
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.