Bug 2551418 (CVE-2026-96958)

Summary:	CVE-2026-96958 dotnet: .NET Denial of Service Vulnerability
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in .NET. Due to inefficient algorithmic complexity, an unauthenticated remote attacker can submit specially crafted requests over the network. Processing these requests leads to excessive resource consumption, resulting in a Denial of Service (DoS).	Story Points:	---
Clone Of:		Environment:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-10-13 20:34:56 UTC

Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.

Affected packages:
- System.Security.Cryptography.Xml (release 10.0): 10.0.0 - 10.0.12; fixed 10.0.13
- System.Security.Cryptography.Xml (release 9.0): 9.0.0 - 9.0.20; fixed 9.0.21
- System.Security.Cryptography.Xml (release 8.0): 8.0.0 - 8.0.4; fixed 8.0.5
- System.Security.Cryptography.Xml (release 11.0): 11.0.0-preview.1 - 11.0.0-rc.1; fixed 11.0.0-rc.2