CVE-2026-66822Medium· 5.9▾ SunlitInsertion of sensitive information into sent data in .NET allows an unauthorized attacker to disclose information over a network.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 0.2 · 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
0.7%
0.7% → 0.8%
Insertion of sensitive information into sent data in .NET allows an unauthorized attacker to disclose information over a network.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
Microsoft.NETCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.win-x64 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.win-x86 >= 9.0.0, <= 9.0.20Microsoft.NETCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.win-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.win-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.win-x86 >= 11.0.0-preview.1, <= 11.0.0-rc.1Microsoft.NETCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.win-x64 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.win-x86 >= 10.0.0, <= 10.0.12Microsoft.NETCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.win-x64 >= 8.0.0, <= 8.0.31Microsoft.NETCore.App.Runtime.win-x86 >= 8.0.0, <= 8.0.31Patched in:
Microsoft.NETCore.App.Runtime.linux-arm 9.0.21Microsoft.NETCore.App.Runtime.linux-arm64 9.0.21Microsoft.NETCore.App.Runtime.linux-musl-arm 9.0.21Microsoft.NETCore.App.Runtime.linux-musl-arm64 9.0.21Microsoft.NETCore.App.Runtime.linux-musl-x64 9.0.21Microsoft.NETCore.App.Runtime.linux-x64 9.0.21Microsoft.NETCore.App.Runtime.osx-arm64 9.0.21Microsoft.NETCore.App.Runtime.osx-x64 9.0.21Microsoft.NETCore.App.Runtime.win-arm64 9.0.21Microsoft.NETCore.App.Runtime.win-x64 9.0.21Microsoft.NETCore.App.Runtime.win-x86 9.0.21Microsoft.NETCore.App.Runtime.linux-arm 11.0.0-rc.2Microsoft.NETCore.App.Runtime.linux-arm64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.linux-musl-arm 11.0.0-rc.2Microsoft.NETCore.App.Runtime.linux-musl-arm64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.linux-musl-x64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.linux-x64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.osx-arm64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.osx-x64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.win-arm64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.win-x64 11.0.0-rc.2Microsoft.NETCore.App.Runtime.win-x86 11.0.0-rc.2Microsoft.NETCore.App.Runtime.linux-arm 10.0.13Microsoft.NETCore.App.Runtime.linux-arm64 10.0.13Microsoft.NETCore.App.Runtime.linux-musl-arm 10.0.13Microsoft.NETCore.App.Runtime.linux-musl-arm64 10.0.13Microsoft.NETCore.App.Runtime.linux-musl-x64 10.0.13Microsoft.NETCore.App.Runtime.linux-x64 10.0.13Microsoft.NETCore.App.Runtime.osx-arm64 10.0.13Microsoft.NETCore.App.Runtime.osx-x64 10.0.13Microsoft.NETCore.App.Runtime.win-arm64 10.0.13Microsoft.NETCore.App.Runtime.win-x64 10.0.13Microsoft.NETCore.App.Runtime.win-x86 10.0.13Microsoft.NETCore.App.Runtime.linux-arm 8.0.32Microsoft.NETCore.App.Runtime.linux-arm64 8.0.32Microsoft.NETCore.App.Runtime.linux-musl-arm 8.0.32Microsoft.NETCore.App.Runtime.linux-musl-arm64 8.0.32Microsoft.NETCore.App.Runtime.linux-musl-x64 8.0.32Microsoft.NETCore.App.Runtime.linux-x64 8.0.32Microsoft.NETCore.App.Runtime.osx-arm64 8.0.32Microsoft.NETCore.App.Runtime.osx-x64 8.0.32Microsoft.NETCore.App.Runtime.win-arm64 8.0.32Microsoft.NETCore.App.Runtime.win-x64 8.0.32Microsoft.NETCore.App.Runtime.win-x86 8.0.32Source: https://github.com/advisories/GHSA-wxxw-5cvc-53j7
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