CVE-2026-70183High· 7.5▾ TwilightConcurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.5%
0.5% → 0.5%
Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges 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-arm >= 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-arm >= 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-arm >= 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, <= 9.0.20Microsoft.AspNetCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.win-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.win-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.win-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.AspNetCore.App.Runtime.win-x86 >= 11.0.0-preview.1, <= 11.0.0-rc.1Patched 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-arm 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-arm 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-arm 9.0.21Microsoft.AspNetCore.App.Runtime.win-arm64 9.0.21Microsoft.AspNetCore.App.Runtime.win-x64 9.0.21Microsoft.AspNetCore.App.Runtime.win-x86 9.0.21Microsoft.AspNetCore.App.Runtime.linux-arm 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.linux-arm64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.linux-musl-arm 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.linux-musl-x64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.linux-x64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.osx-arm64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.osx-x64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.win-arm 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.win-arm64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.win-x64 11.0.0-rc.2Microsoft.AspNetCore.App.Runtime.win-x86 11.0.0-rc.2Source: https://github.com/advisories/GHSA-494h-xx7x-5frh
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