CVE-2026-45591
ASP.NET Core Denial of Service Vulnerability
- State
- Published
- Severity
- 7.5 High
- Published
- Jun 9, 2026
- Updated
- Sep 24, 2026
- Reserved
- May 12, 2026
Description
Uncontrolled resource consumption 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 |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
.NET 10.0Microsoft |
|
.NET 8.0Microsoft |
|
.NET 9.0Microsoft |
|
ASP.NET Core 10.0Microsoft |
|
ASP.NET Core 8.0Microsoft |
|
ASP.NET Core 9.0Microsoft |
|
Microsoft Visual Studio 2026 version 18.6Microsoft |
|
References
- ASP.NET Core Denial of Service Vulnerabilityvendor-advisorypatch
- https://access.redhat.com/security/cve/CVE-2026-45591vdb-entry
- RHBZ#2487224issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45591.json
- https://access.redhat.com/errata/RHSA-2026:28007vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:28009vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25115vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25111vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25112vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25114vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25110vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25113vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:28227vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:28011vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:28051vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25222vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25220vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25221vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:26638vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:26994vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:17527vendor-advisory
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