PT-2026-32748 · Nuget · System.Security.Cryptography.Xml

Ludvig Pedersen · Published 2026-04-14 · Updated 2026-04-14 · CVE-2026-26171

NVD

CVSS v3.1

7.5

High

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Fix

XXE

Resource Exhaustion

Weakness Enumeration

CWE-611

CWE-400

Related Identifiers

CVE-2026-26171

GHSA-W3X6-4M5H-CXQF

Affected Products

System.Security.Cryptography.Xml

References · 5

• https://osv.dev/vulnerability/GHSA-w3x6-4m5h-cxqf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-26171 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171 · Vendor Advisory
• https://github.com/dotnet/runtime · Note
• https://github.com/dotnet/runtime/security/advisories/GHSA-w3x6-4m5h-cxqf · Note