NULL Pointer Dereference Affecting github.com/getkin/kin-openapi/openapi3filter package, versions >=0.136.0 <0.149.0


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMGETKINKINOPENAPIOPENAPI3FILTER-21197128
  • published18 Oct 2026
  • disclosed15 Oct 2026
  • creditUnknown

Introduced: 15 Oct 2026

NewCVE-2026-100353  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade github.com/getkin/kin-openapi/openapi3filter to version 0.149.0 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference due to improper handling of array schemas that omit the items keyword in request validation. An attacker can cause the application to panic and potentially crash by submitting crafted requests that trigger nil-pointer dereference in the affected decoding logic. This is only exploitable if the OpenAPI 3.1 specification used by the application declares an array without specifying the items keyword.

CVSS Base Scores

version 4.0
version 3.1