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Servers and applications

CVE-2026-70188

ASP.NET Core Security Feature Bypass Vulnerability

Severity
Critical 9.1
Published
13 Oct 2026
Last changed
30 Oct 2026
Added to UpHeron
30 Oct 2026
Fixed in
8.0.32, 9.0.21, 10.0.13, 11.0.0-rc.2
Sources
CVE Program

Affected software

SoftwareAffected versions
.NETServers and applications · cna:microsoft|asp.net core*
  • From 8.0 before 8.0.32
  • From 9.0 before 9.0.21
  • From 10.0 before 10.0.13
  • From 11.0 before 11.0.0-rc.2

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-70188