CVE-2026-70186High· 7.5▾ TwilightDeadlock in ASP.NET Core allows an unauthorized attacker to deny service over a network.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0 · exploitation 0
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Deadlock in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
Microsoft.AspNetCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.win-x64 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.win-x86 >= 8.0.0, <= 8.0.31Microsoft.AspNetCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.win-x64 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.win-x86 >= 10.0.0, <= 10.0.12Microsoft.AspNetCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.win-x64 >= 9.0.0, <= 9.0.20Microsoft.AspNetCore.App.Runtime.win-x86 >= 9.0.0, <= 9.0.20Patched in:
Microsoft.AspNetCore.App.Runtime.linux-arm 8.0.32Microsoft.AspNetCore.App.Runtime.linux-arm64 8.0.32Microsoft.AspNetCore.App.Runtime.linux-musl-arm 8.0.32Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 8.0.32Microsoft.AspNetCore.App.Runtime.linux-musl-x64 8.0.32Microsoft.AspNetCore.App.Runtime.linux-x64 8.0.32Microsoft.AspNetCore.App.Runtime.osx-arm64 8.0.32Microsoft.AspNetCore.App.Runtime.osx-x64 8.0.32Microsoft.AspNetCore.App.Runtime.win-arm64 8.0.32Microsoft.AspNetCore.App.Runtime.win-x64 8.0.32Microsoft.AspNetCore.App.Runtime.win-x86 8.0.32Microsoft.AspNetCore.App.Runtime.linux-arm 10.0.13Microsoft.AspNetCore.App.Runtime.linux-arm64 10.0.13Microsoft.AspNetCore.App.Runtime.linux-musl-arm 10.0.13Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 10.0.13Microsoft.AspNetCore.App.Runtime.linux-musl-x64 10.0.13Microsoft.AspNetCore.App.Runtime.linux-x64 10.0.13Microsoft.AspNetCore.App.Runtime.osx-arm64 10.0.13Microsoft.AspNetCore.App.Runtime.osx-x64 10.0.13Microsoft.AspNetCore.App.Runtime.win-arm64 10.0.13Microsoft.AspNetCore.App.Runtime.win-x64 10.0.13Microsoft.AspNetCore.App.Runtime.win-x86 10.0.13Microsoft.AspNetCore.App.Runtime.linux-arm 9.0.21Microsoft.AspNetCore.App.Runtime.linux-arm64 9.0.21Microsoft.AspNetCore.App.Runtime.linux-musl-arm 9.0.21Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 9.0.21Microsoft.AspNetCore.App.Runtime.linux-musl-x64 9.0.21Microsoft.AspNetCore.App.Runtime.linux-x64 9.0.21Microsoft.AspNetCore.App.Runtime.osx-arm64 9.0.21Microsoft.AspNetCore.App.Runtime.osx-x64 9.0.21Microsoft.AspNetCore.App.Runtime.win-arm64 9.0.21Microsoft.AspNetCore.App.Runtime.win-x64 9.0.21Microsoft.AspNetCore.App.Runtime.win-x86 9.0.21Connected by shared product, vendor, weakness, or advisory.
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