CVE-2026-26171 (High) detected in system.security.cryptography.xml.8.0.2.nupkg

[mend-bolt-for-github]

CVE-2026-26171 - High Severity Vulnerability

Vulnerable Library - system.security.cryptography.xml.8.0.2.nupkg

Provides classes to support the creation and validation of XML digital signatures. The classes in this namespace implement the World Wide Web Consortium Recommendation, "XML-Signature Syntax and Processing", described at http://www.w3.org/TR/xmldsig-core/.

Commonly Used Types:
System.Security.Cryptography.Xml.CipherData
System.Security.Cryptography.Xml.CipherReference
System.Security.Cryptography.Xml.DataObject
System.Security.Cryptography.Xml.DataReference
System.Security.Cryptography.Xml.DSAKeyValue
System.Security.Cryptography.Xml.EncryptedData
System.Security.Cryptography.Xml.EncryptedKey
System.Security.Cryptography.Xml.EncryptedReference
System.Security.Cryptography.Xml.EncryptedType
System.Security.Cryptography.Xml.EncryptedXml
System.Security.Cryptography.Xml.EncryptionMethod
System.Security.Cryptography.Xml.EncryptionProperty
System.Security.Cryptography.Xml.EncryptionPropertyCollection
System.Security.Cryptography.Xml.KeyInfo
System.Security.Cryptography.Xml.KeyInfoClause
System.Security.Cryptography.Xml.KeyInfoEncryptedKey
System.Security.Cryptography.Xml.KeyInfoName
System.Security.Cryptography.Xml.KeyInfoNode
System.Security.Cryptography.Xml.KeyInfoRetrievalMethod
System.Security.Cryptography.Xml.KeyInfoX509Data
System.Security.Cryptography.Xml.KeyReference
System.Security.Cryptography.Xml.Reference
System.Security.Cryptography.Xml.ReferenceList
System.Security.Cryptography.Xml.RSAKeyValue
System.Security.Cryptography.Xml.Signature
System.Security.Cryptography.Xml.SignedInfo
System.Security.Cryptography.Xml.SignedXml
System.Security.Cryptography.Xml.Transform
System.Security.Cryptography.Xml.TransformChain
System.Security.Cryptography.Xml.XmlDecryptionTransform
System.Security.Cryptography.Xml.XmlDsigBase64Transform
System.Security.Cryptography.Xml.XmlDsigC14NTransform
System.Security.Cryptography.Xml.XmlDsigC14NWithCommentsTransform
System.Security.Cryptography.Xml.XmlDsigEnvelopedSignatureTransform
System.Security.Cryptography.Xml.XmlDsigExcC14NTransform
System.Security.Cryptography.Xml.XmlDsigExcC14NWithCommentsTransform
System.Security.Cryptography.Xml.XmlDsigXPathTransform
System.Security.Cryptography.Xml.XmlDsigXsltTransform
System.Security.Cryptography.Xml.XmlLicenseTransform

Library home page: https://api.nuget.org/packages/system.security.cryptography.xml.8.0.2.nupkg

Path to dependency file: /dotnet/RarelySimple.AvatarScriptLink.Services/RarelySimple.AvatarScriptLink.Services.csproj

Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.security.cryptography.xml/8.0.2/system.security.cryptography.xml.8.0.2.nupkg

Dependency Hierarchy:

• system.servicemodel.primitives.8.1.1.nupkg (Root Library)
  • ❌ system.security.cryptography.xml.8.0.2.nupkg (Vulnerable Library)

Found in base branch: main

Vulnerability Details

Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.

Publish Date: 2026-04-14

URL: CVE-2026-26171

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-w3x6-4m5h-cxqf

Release Date: 2026-04-14

Fix Resolution: system.security.cryptography.xml - 8.0.3,system.security.cryptography.xml - 10.0.6,system.security.cryptography.xml - 9.0.15

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[mend-bolt-for-github]

✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-bolt-for-github]

ℹ️ This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.

[mend-bolt-for-github]

✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-bolt-for-github]

ℹ️ This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.