CVE-2026-69304 PUBLISHED

ASP.NET Core Denial of Service Vulnerability

Assigner: microsoft
Reserved: 03.08.2026 Published: 08.09.2026 Updated: 08.09.2026

Improper handling of highly compressed data (data amplification) in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CVSS Score: 5.9

Product Status

Vendor Microsoft
Product .NET 10.0
Versions
  • affected from 10.0.0 to 10.0.12 (excl.)
Vendor Microsoft
Product .NET 8.0
Versions
  • affected from 8.0.0 to 8.0.31 (excl.)
Vendor Microsoft
Product .NET 9.0
Versions
  • affected from 9.0.0 to 9.0.20 (excl.)
Vendor Microsoft
Product ASP.NET Core 10.0
Versions
  • affected from 10.0 to 10.0.12 (excl.)
Vendor Microsoft
Product ASP.NET Core 11.0
Versions
  • affected from 11.0 to 11.0 RC1 (excl.)
Vendor Microsoft
Product ASP.NET Core 8.0
Versions
  • affected from 8.0 to 8.0.31 (excl.)
Vendor Microsoft
Product ASP.NET Core 9.0
Versions
  • affected from 9.0 to 9.0.20 (excl.)
Vendor Microsoft
Product Microsoft Visual Studio 2022 version 17.14
Versions
  • affected from 17.14.0 to 17.14.40 (excl.)
Vendor Microsoft
Product Microsoft Visual Studio 2026 version 18.9
Versions
  • affected from 18.9.0 to 18.9.3 (excl.)

References

Problem Types