CVE-2026-100348

CVE-2026-100348 · kin-openapi spec loader panics on a self-referential additionalProperties $ref (nil-pointer DoS)

This page contains facts from public vulnerability sources. Check the original advisory before updating.

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.145.0, openapi3.Loader can dereference a nil SchemaRef.Value while resolving a self-referential additionalProperties JSON Reference such as a schema that points to its own additionalProperties member. Loading an attacker-controlled OpenAPI document through LoadFromData, LoadFromFile, or LoadFromURI reaches resolveComponent before document validation and can panic the loading process. Resolved additionalProperties schemas and ordinary recursive schemas do not take the vulnerable nil-value path. This issue is fixed in version 0.145.0.

CVSS 5.3 · Medium · EPSS 0.4%

Published

2026-10-15T15:31:19.904Z

Updated

2026-10-15T15:44:17.041Z

Stack: system

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