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Description

Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.

PUBLISHED Reserved 2026-05-12 | Published 2026-06-09 | Updated 2026-06-10 | Assigner microsoft




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Problem types

CWE-400: Uncontrolled Resource Consumption

Product status

10.0.0 (custom) before 10.0.9
affected

8.0.0 (custom) before 8.0.28
affected

9.0.0 (custom) before 9.0.17
affected

10.0 (custom) before 10.0.9
affected

8.0 (custom) before 8.0.28
affected

9.0 (custom) before 9.0.17
affected

18.6.0 (custom) before 18.6.3
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591 (ASP.NET Core Denial of Service Vulnerability) vendor-advisory patch

cve.org (CVE-2026-45591)

nvd.nist.gov (CVE-2026-45591)

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