Improper Authentication Affecting golang-github-getkin-kin-openapi package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.59% (46th percentile)

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  • Snyk IDSNYK-ECHOLATEST-GOLANGGITHUBGETKINKINOPENAPI-18751700
  • published13 Aug 2026
  • disclosed12 Aug 2026

Introduced: 12 Aug 2026

CVE-2026-73501  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest golang-github-getkin-kin-openapi.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-github-getkin-kin-openapi package and not the golang-github-getkin-kin-openapi package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.144.0, ValidationHandler.Load() in openapi3filter/validation_handler.go silently replaces a nil AuthenticationFunc with NoopAuthenticationFunc, which returns nil without checking credentials. This substitution causes every OpenAPI security requirement to be satisfied for unauthenticated requests when an application relies on ValidationHandler as its enforcement middleware. The no-op callback prevents the fail-closed ErrAuthenticationServiceMissing path from being reached and forwards the request to protected handlers that may require an API key, OAuth token, or another security scheme. This issue is fixed in version 0.144.0.

CVSS Base Scores

version 3.1