Inefficient Algorithmic Complexity Affecting system.security.cryptography.xml package, versions [8.0.0, 8.0.5)[9.0.0, 9.0.21)[10.0.0,10.0.13)[11.0.0-preview.1, 11.0.0-rc.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DOTNET-SYSTEMSECURITYCRYPTOGRAPHYXML-20930961
- published14 Oct 2026
- disclosed13 Oct 2026
- creditUnknown
Introduced: 13 Oct 2026
NewCVE-2026-96958 (opens in a new tab)How to fix?
Upgrade System.Security.Cryptography.Xml to version 8.0.5, 9.0.21, 10.0.13, 11.0.0-rc.2 or higher.
Overview
Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the processing of signed XML documents due to inefficient algorithmic complexity in the handling of certain XML structures. An attacker can cause excessive resource consumption and disrupt service availability by submitting specially crafted XML input.