CVE-2026-42899 PUBLISHED

ASP.NET Core Denial of Service Vulnerability

Assigner: microsoft
Reserved: 30.04.2026 Published: 12.05.2026 Updated: 12.05.2026

Loop with unreachable exit condition ('infinite loop') in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Metrics

CVSS Vector: 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
CVSS Score: 7.5

Product Status

Vendor Microsoft
Product .NET 10.0
Versions
  • affected from 10.0.0 to 10.0.8 (excl.)
Vendor Microsoft
Product .NET 8.0
Versions
  • affected from 8.0.0 to 8.0.27 (excl.)
Vendor Microsoft
Product .NET 9.0
Versions
  • affected from 9.0.0 to 9.0.16 (excl.)

References

Problem Types