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CVE-2026-47302 is an uncontrolled resource-allocation vulnerability in .NET XML processing affecting System.Security.Cryptography.Xml in .NET 8, 9, and 10. XML encryption handling during parsing can consume excessive resources because allocation is not adequately limited or throttled. An unauthenticated remote attacker can exploit the flaw over a network to exhaust resources or crash affected applications, causing denial of service. The specific vulnerable function and triggering input structure are not currently available.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
40 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A network-accessible denial-of-service vulnerability caused by unrestricted resource allocation in .NET, affecting System.Security.Cryptography.Xml. Exploitation requires neither authentication nor user interaction. The reference rates it High, with a CVSS v3 base score of 7.5, and recommends updating System.Security.Cryptography.Xml and related packages to version 8.0.0+echo.1 or later.
A .NET uncontrolled-resource-allocation vulnerability causing denial of service.
A .NET uncontrolled-resource-allocation vulnerability that can cause denial of service.
A .NET uncontrolled resource-allocation vulnerability that permits denial of service.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.