Bug 2460224 (CVE-2026-40372)

Summary: CVE-2026-40372 ASP.NET Core: ASP.NET: ASP.NET Core: Privilege escalation via improper cryptographic signature verification
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-04-21 20:01:41 UTC
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.