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Vulnerabilities / CVE-2026-40372

critical

CVE-2026-40372

ASP.NET Core: ASP.NET: ASP.NET Core: Privilege escalation via improper cryptographic signature verification

Published Modified CWE 347
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

GHSA9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Red Hat9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Bitnami9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Trivy's own label is CRITICAL. Rated critical by GHSA, Red Hat, Bitnami. Rated lower by Amazon (high), Ubuntu (medium).

Description

Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

Affected packages and fixed versions

SourcePackageFixed in
bitnami::Bitnami Vulnerability Databaseaspnet-core10.0.7
nuget::GitHub Security Advisory NuGetMicrosoft.AspNetCore.DataProtection, microsoft.aspnetcore.dataprotection10.0.7
alpine 3.23dotnet10-runtime10.0.7-r0
alpine 3.24dotnet10-runtime10.0.7-r0
alpine edgedotnet10-runtime10.0.7-r0
amazon linux 2023aspnetcore-runtime-10.0, aspnetcore-runtime-dbg-10.0, aspnetcore-targeting-pack-10.0 and 20 more10.0.7-1.amzn2023.0.1 and 1 more
rapidfort amazon linux 2023dotnet, dotnet-host10.0.107-1.amzn2023.0.1 and 1 more
rapidfort ubuntu 20.04dotnet10, dotnet70:10.0.107-10.0.7-0ubuntu1~24.04.1, 0:10.0.107-10.0.7-0ubuntu1~25.10.1, 0:10.0.107-10.0.7-0ubuntu1~26.04.1
rapidfort ubuntu 22.04dotnet10, dotnet70:10.0.107-10.0.7-0ubuntu1~24.04.1, 0:10.0.107-10.0.7-0ubuntu1~25.10.1, 0:10.0.107-10.0.7-0ubuntu1~26.04.1
rapidfort ubuntu 24.04dotnet10, dotnet70:10.0.107-10.0.7-0ubuntu1~24.04.1, 0:10.0.107-10.0.7-0ubuntu1~25.10.1, 0:10.0.107-10.0.7-0ubuntu1~26.04.1
ubuntu 24.04dotnet1010.0.107-10.0.7-0ubuntu1~24.04.1
ubuntu 25.10dotnet1010.0.107-10.0.7-0ubuntu1~25.10.1
Show all 40 entries from 13 sources
SourcePackageFixed in
bitnami::Bitnami Vulnerability Databaseaspnet-core10.0.7
nuget::GitHub Security Advisory NuGetMicrosoft.AspNetCore.DataProtection10.0.7
nuget::GitHub Security Advisory NuGetmicrosoft.aspnetcore.dataprotection10.0.7
alpine 3.23dotnet10-runtime10.0.7-r0
alpine 3.24dotnet10-runtime10.0.7-r0
alpine edgedotnet10-runtime10.0.7-r0
amazon linux 2023aspnetcore-runtime-10.010.0.7-1.amzn2023.0.1
amazon linux 2023aspnetcore-runtime-dbg-10.010.0.7-1.amzn2023.0.1
amazon linux 2023aspnetcore-targeting-pack-10.010.0.7-1.amzn2023.0.1
amazon linux 2023dotnet10.0.107-1.amzn2023.0.1
amazon linux 2023dotnet-apphost-pack-10.010.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-apphost-pack-10.0-debuginfo10.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-host10.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-host-debuginfo10.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-hostfxr-10.010.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-hostfxr-10.0-debuginfo10.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-runtime-10.010.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-runtime-10.0-debuginfo10.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-runtime-dbg-10.010.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-sdk-10.010.0.107-1.amzn2023.0.1
amazon linux 2023dotnet-sdk-10.0-debuginfo10.0.107-1.amzn2023.0.1
amazon linux 2023dotnet-sdk-10.0-source-built-artifacts10.0.107-1.amzn2023.0.1
amazon linux 2023dotnet-sdk-aot-10.010.0.107-1.amzn2023.0.1
amazon linux 2023dotnet-sdk-aot-10.0-debuginfo10.0.107-1.amzn2023.0.1
amazon linux 2023dotnet-sdk-dbg-10.010.0.107-1.amzn2023.0.1
amazon linux 2023dotnet-targeting-pack-10.010.0.7-1.amzn2023.0.1
amazon linux 2023dotnet-templates-10.010.0.107-1.amzn2023.0.1
amazon linux 2023dotnet10.0-debuginfo10.0.107-1.amzn2023.0.1
amazon linux 2023dotnet10.0-debugsource10.0.107-1.amzn2023.0.1
rapidfort amazon linux 2023dotnet10.0.107-1.amzn2023.0.1
rapidfort amazon linux 2023dotnet-host10.0.7-1.amzn2023.0.1
rapidfort ubuntu 20.04dotnet100:10.0.107-10.0.7-0ubuntu1~24.04.1, 0:10.0.107-10.0.7-0ubuntu1~25.10.1, 0:10.0.107-10.0.7-0ubuntu1~26.04.1
rapidfort ubuntu 20.04dotnet7no fix listed
rapidfort ubuntu 22.04dotnet100:10.0.107-10.0.7-0ubuntu1~24.04.1, 0:10.0.107-10.0.7-0ubuntu1~25.10.1, 0:10.0.107-10.0.7-0ubuntu1~26.04.1
rapidfort ubuntu 22.04dotnet7no fix listed
rapidfort ubuntu 24.04dotnet100:10.0.107-10.0.7-0ubuntu1~24.04.1, 0:10.0.107-10.0.7-0ubuntu1~25.10.1, 0:10.0.107-10.0.7-0ubuntu1~26.04.1
rapidfort ubuntu 24.04dotnet7no fix listed
ubuntu 24.04dotnet1010.0.107-10.0.7-0ubuntu1~24.04.1
ubuntu 25.10dotnet1010.0.107-10.0.7-0ubuntu1~25.10.1
ubuntu 26.04dotnet1010.0.107-10.0.7-0ubuntu1~26.04.1

References

All 12 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.