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Cryptographic Signature" }, "discovery_date": "2026-04-21T20:01:18.286979+00:00", "flags": [ { "label": "vulnerable_code_not_present", "product_ids": [ "red_hat_enterprise_linux_10:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_10:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_10:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_10:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_10:dotnet-host", "red_hat_enterprise_linux_10:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_10:dotnet-runtime-10.0", "red_hat_enterprise_linux_10:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_10:dotnet-sdk-10.0", "red_hat_enterprise_linux_10:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_10:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_10:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_10:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_10:dotnet-templates-10.0", "red_hat_enterprise_linux_10:dotnet10.0.src", "red_hat_enterprise_linux_8:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_8:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_8:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_8:dotnet", "red_hat_enterprise_linux_8:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_8:dotnet-host", "red_hat_enterprise_linux_8:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_8:dotnet-runtime-10.0", "red_hat_enterprise_linux_8:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_8:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_8:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_8:dotnet-templates-10.0", "red_hat_enterprise_linux_8:dotnet10.0.src", "red_hat_enterprise_linux_9:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_9:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_9:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_9:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_9:dotnet-host", "red_hat_enterprise_linux_9:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_9:dotnet-runtime-10.0", "red_hat_enterprise_linux_9:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_9:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_9:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_9:dotnet-templates-10.0", "red_hat_enterprise_linux_9:dotnet10.0.src", "red_hat_hardened_images:dotnet10.0.src" ] } ], "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2460224" } ], "notes": [ { "category": "description", "text": "A flaw was found in ASP.NET Core due to improper verification of cryptographic signatures. An unauthorized attacker can exploit this vulnerability remotely over a network, leading to privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "ASP.NET Core: ASP.NET: ASP.NET Core: Privilege escalation via improper cryptographic signature verification", "title": "Vulnerability summary" }, { "category": "other", "text": "No Red Hat products are affected as this vulnerability is specific to Microsoft.AspNetCore.DataProtection 10.0.6 from NuGet.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "known_not_affected": [ "red_hat_enterprise_linux_10:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_10:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_10:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_10:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_10:dotnet-host", "red_hat_enterprise_linux_10:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_10:dotnet-runtime-10.0", "red_hat_enterprise_linux_10:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_10:dotnet-sdk-10.0", "red_hat_enterprise_linux_10:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_10:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_10:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_10:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_10:dotnet-templates-10.0", "red_hat_enterprise_linux_10:dotnet10.0.src", "red_hat_enterprise_linux_8:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_8:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_8:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_8:dotnet", "red_hat_enterprise_linux_8:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_8:dotnet-host", "red_hat_enterprise_linux_8:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_8:dotnet-runtime-10.0", "red_hat_enterprise_linux_8:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_8:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_8:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_8:dotnet-templates-10.0", "red_hat_enterprise_linux_8:dotnet10.0.src", "red_hat_enterprise_linux_9:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_9:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_9:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_9:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_9:dotnet-host", "red_hat_enterprise_linux_9:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_9:dotnet-runtime-10.0", "red_hat_enterprise_linux_9:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_9:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_9:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_9:dotnet-templates-10.0", "red_hat_enterprise_linux_9:dotnet10.0.src", "red_hat_hardened_images:dotnet10.0.src" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-40372" }, { "category": "external", "summary": "RHBZ#2460224", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460224" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-40372", "url": "https://www.cve.org/CVERecord?id=CVE-2026-40372" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-40372", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40372" }, { "category": "external", "summary": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40372", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40372" } ], "release_date": "2026-04-21T19:20:50.215000+00:00", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1" }, "products": [ "red_hat_enterprise_linux_10:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_10:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_10:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_10:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_10:dotnet-host", "red_hat_enterprise_linux_10:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_10:dotnet-runtime-10.0", 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"red_hat_enterprise_linux_10:dotnet-templates-10.0", "red_hat_enterprise_linux_10:dotnet10.0.src", "red_hat_enterprise_linux_8:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_8:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_8:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_8:dotnet", "red_hat_enterprise_linux_8:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_8:dotnet-host", "red_hat_enterprise_linux_8:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_8:dotnet-runtime-10.0", "red_hat_enterprise_linux_8:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_8:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_8:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_8:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_8:dotnet-templates-10.0", "red_hat_enterprise_linux_8:dotnet10.0.src", "red_hat_enterprise_linux_9:aspnetcore-runtime-10.0", "red_hat_enterprise_linux_9:aspnetcore-runtime-dbg-10.0", "red_hat_enterprise_linux_9:aspnetcore-targeting-pack-10.0", "red_hat_enterprise_linux_9:dotnet-apphost-pack-10.0", "red_hat_enterprise_linux_9:dotnet-host", "red_hat_enterprise_linux_9:dotnet-hostfxr-10.0", "red_hat_enterprise_linux_9:dotnet-runtime-10.0", "red_hat_enterprise_linux_9:dotnet-runtime-dbg-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-10.0-source-built-artifacts", "red_hat_enterprise_linux_9:dotnet-sdk-aot-10.0", "red_hat_enterprise_linux_9:dotnet-sdk-dbg-10.0", "red_hat_enterprise_linux_9:dotnet-targeting-pack-10.0", "red_hat_enterprise_linux_9:dotnet-templates-10.0", "red_hat_enterprise_linux_9:dotnet10.0.src", "red_hat_hardened_images:dotnet10.0.src" ] } ], "title": "ASP.NET Core: ASP.NET: ASP.NET Core: Privilege escalation via improper cryptographic signature verification" } ] }