Uncontrolled Recursion Affecting github.com/getkin/kin-openapi/openapi3 package, versions <0.149.0
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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- published18 Oct 2026
- disclosed15 Oct 2026
- creditUnknown
Introduced: 15 Oct 2026
NewCVE-2026-100354 (opens in a new tab)How to fix?
Upgrade github.com/getkin/kin-openapi/openapi3 to version 0.149.0 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion through the visitJSON and decodeValue functions when processing schemas with circular references in allOf, anyOf, or oneOf combinators. An attacker can cause a fatal process crash by submitting a crafted OpenAPI specification or request that triggers uncontrolled recursion, resulting in a stack overflow and termination of the entire server process.