CVE-2026-100348 Details
Description
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.
A nil-pointer dereference vulnerability has been identified in the kin-openapi Go library, specifically in versions prior to 0.145.0. The issue arises in the openapi3.Loader component when it processes self-referential additionalProperties JSON References. This flaw can lead to a denial-of-service condition by causing the application to panic and crash during the OpenAPI document loading process. The vulnerability is triggered before the document is validated, allowing the panic to disrupt the normal operation of the application.
Users can upgrade to kin-openapi version 0.145.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 15, 2026CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/getkin/kin-openapi/commit/88aa64c7cbd03ecadbb419c473bdcaa8b0124c6b | [email protected] | Source CodeVendor |
| https://github.com/getkin/kin-openapi/releases/tag/v0.145.0 | [email protected] | Release NotesVendor |
| https://github.com/getkin/kin-openapi/security/advisories/GHSA-mh7x-f8wq-4jhx | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| getkin/kin-openapi | <= 0.144.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | New CVE Received | [email protected] |
| Oct 15, 2026 | CVE Modified | CISA-ADP |