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Ecosystem
Package
Version
Vulnerabilities
CVE-2026-21218
CVE-2026-21218
Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network.
Published Feb 11, 2026
https://github.com/advisories/GHSA-qvhc-9v3j-5rfw
CVSS Score
High
7.5
Components Impacted
Components Impacted
Security Details
Security Details
Sonatype Research
Sonatype Research
Ecosystem
Package
Version
Ecosystem
Package
Version
nuget
System.Security.Cryptography.Cose
10.0.0
nuget
System.Security.Cryptography.Cose
10.0.1
nuget
System.Security.Cryptography.Cose
10.0.2
nuget
System.Security.Cryptography.Cose
8.0.0
nuget
System.Security.Cryptography.Cose
8.0.1
nuget
System.Security.Cryptography.Cose
8.0.2
nuget
System.Security.Cryptography.Cose
9.0.0
nuget
System.Security.Cryptography.Cose
9.0.10
nuget
System.Security.Cryptography.Cose
9.0.11
nuget
System.Security.Cryptography.Cose
9.0.12
nuget
System.Security.Cryptography.Cose
9.0.1
nuget
System.Security.Cryptography.Cose
9.0.2
nuget
System.Security.Cryptography.Cose
9.0.3
nuget
System.Security.Cryptography.Cose
9.0.4
nuget
System.Security.Cryptography.Cose
9.0.5
nuget
System.Security.Cryptography.Cose
9.0.6
nuget
System.Security.Cryptography.Cose
9.0.7
nuget
System.Security.Cryptography.Cose
9.0.8
nuget
System.Security.Cryptography.Cose
9.0.9
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CVE-2026-21218 | Components Impacted | Sonatype Guide | Sonatype Guide
