Reference page — cumulative record through Tuesday, October 20, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-97394

CVE-2026-97394HIGH

getkin kin-openapi — kin-openapi: Nil-pointer dereference panic in openapi3filter for OpenAPI 3.1 array schemas missing items

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .0043   35.5     —

AFFECTED
  Product      Versions                 Fixed
  kin-openapi  >= 0.136.0, < 0.143.0 –  —

TIMELINE
  Sep 24  Reserved by GitHub_M
  Oct 15  Published (CNA: GitHub_M)
  Oct 19  EXPLOIT PUBLISHED — CVE-2026-97394 (getkin kin-openapi). Public exploit reference added.

CWE-248, CWE-476 · CNA: GitHub_M · CVSS v3.1 · 4 references · NVD status: Deferred

Description

kin-openapi is a Go project for handling OpenAPI files. From 0.136.0 until 0.143.0, openapi3filter accepts OpenAPI 3.1 array schemas without an items keyword and then dereferences the nil Schema.Items value while decoding application/x-www-form-urlencoded or multipart/form-data request bodies, response headers, and other array parameter surfaces. A remote unauthenticated client can reach an affected operation with a nonempty request or matching response and deterministically trigger a nil-pointer panic during ValidateRequest or ValidateResponse. OpenAPI 3.0 documents are not affected because document validation rejects arrays without items, and JSON request bodies use a different decoder path. This issue is fixed in version 0.143.0.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 24, 2026	Reserved	Reserved by GitHub_M
October 15, 2026	Published	Published (CNA: GitHub_M)
October 19, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-97394 (getkin kin-openapi). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
getkin	kin-openapi	—	>= 0.136.0, < 0.143.0	—

Weaknesses

CWE-248 · CWE-476

References (4)

https://github.com/getkin/kin-openapi/commit/30e292371a89ca6d1f91a9553e0aa518b49f838d [x_refsource_MISC]
https://github.com/getkin/kin-openapi/releases/tag/v0.143.0 [x_refsource_MISC]
https://github.com/getkin/kin-openapi/security/advisories/GHSA-p6wj-qrr4-pgh5 [x_refsource_CONFIRM]
https://github.com/opnsense/core/security/advisories/GHSA-26cj-h9rj-g5pf [exploit]

Authoritative record: CVE-2026-97394 at cve.org

Vendors: getkin

Weaknesses: CWE-248 · CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-97394 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Tuesday, October 20, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.