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golang-github-getkin-kin-openapi — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2026-100348

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.

Products
golang-github-getkin-kin-openapi
Affected versions
0.110.0-1, 0.117.0-1, 0.118.0-1, 0.120.0-1, 0.122.0-1, 0.122.0-2, 0.122.0-3, 0.123.0-1, 0.124.0-1, 0.135.0-1
Fixed versions
Not specified
CVEs
CVE-2026-100348
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 20:41 UTC · Revision 1

Source evidence

DEBIAN-CVE-2026-100348

core-osv · Original source

Published 15 Oct 2026, 16:17 UTC

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.

osv:DEBIAN-CVE-2026-100348

golang-github-getkin-kin-openapi

Fixed versions: Not specified

golang-github-getkin-kin-openapi

Fixed versions: Not specified

golang-github-getkin-kin-openapi

Fixed versions: Not specified

Complete source record
{
  "id": "8a409dc971f390b932f87d39d4a05d2489eb41493f128ad9ff5aad7cbbabfa5e",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-100348",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-100348",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2026-100348",
    "products": [
      {
        "name": {
          "value": "golang-github-getkin-kin-openapi",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.110.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.117.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.118.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.120.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.122.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.122.0-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.122.0-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.123.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.124.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.135.0-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "golang-github-getkin-kin-openapi",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.124.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.135.0-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "golang-github-getkin-kin-openapi",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.124.0-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.135.0-1",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2026-100348",
      "aliases": [
        "DEBIAN-CVE-2026-100348"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-github-getkin-kin-openapi",
            "purl": "pkg:deb/debian/golang-github-getkin-kin-openapi?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "0.110.0-1",
            "0.117.0-1",
            "0.118.0-1",
            "0.120.0-1",
            "0.122.0-1",
            "0.122.0-2",
            "0.122.0-3",
            "0.123.0-1",
            "0.124.0-1",
            "0.135.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100348.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-github-getkin-kin-openapi",
            "purl": "pkg:deb/debian/golang-github-getkin-kin-openapi?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "0.124.0-1",
            "0.135.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100348.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "golang-github-getkin-kin-openapi",
            "purl": "pkg:deb/debian/golang-github-getkin-kin-openapi?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "0.124.0-1",
            "0.135.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100348.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-16T14:00:06.867282094Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-100348"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-100348"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-100348",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 340951,
  "published_at": "2026-10-15T16:17:30.477+00:00"
}