Uncontrolled Recursion Affecting microsoft.openapi package, versions [2.0.0-preview11,2.7.5)[3.0.0,3.5.4)
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-MICROSOFTOPENAPI-17816696
- published4 Jul 2026
- disclosed30 Jun 2026
- creditUnknown
Introduced: 30 Jun 2026
NewCVE-2026-49451 (opens in a new tab)How to fix?
Upgrade Microsoft.OpenApi to version 2.7.5, 3.5.4 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion via the parsing process. An attacker can cause process termination by submitting a crafted OpenAPI document containing circular schema references.