CVE-2026-73502

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Source
https://cve.org/CVERecord?id=CVE-2026-73502
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-73502.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-73502
Aliases
Downstream
CGA (19)
CLEANSTART (3)
DEBIAN (1)
MINI (15)
openSUSE (1)
SUSE (1)
UBUNTU (1)
Related
Published
2026-08-18T17:58:21Z
Modified
2026-10-24T02:35:36Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema
Details

kin-openapi is a Go project for handling OpenAPI files. From 0.2.0 until 0.144.0, openapi3filter.ValidateRequest can encounter a NULL-pointer-dereference denial of service when an operation declares a content parameter whose application/json media type has no schema. In openapi3filter/req_resp_decoder.go, the default defaultContentParameterDecoder dereferences mt.Schema.Value without checking whether mt.Schema is nil, even though doc.Validate() accepts the document under OpenAPI 3.0.x and 3.1.x. A single unauthenticated request supplying the parameter value can panic request validation, causing an aborted request with log growth in the common synchronous net/http path or a full process crash in integrations without recovery. This issue is fixed in version 0.144.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73502.json"
}
References

Affected packages

Git / github.com/getkin/kin-openapi

Affected ranges

Type
GIT
Repo
https://github.com/getkin/kin-openapi
Events
Introduced
90a7df014b4e7699507bf82aa5601503a9ba85da
Fixed
f0407d53b0730280266f454b755010e7eeb985da
Fixed
68ac2affa325514d7d6e731204d6a1edf6bdff64
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0.2.0"
                },
                {
                    "fixed": "0.144.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "68ac2affa325514d7d6e731204d6a1edf6bdff64"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v0.144.0",
            "range": [
                {
                    "fixed": "f0407d53b0730280266f454b755010e7eeb985da"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.10.0
v0.100.0
v0.101.0
v0.102.0
v0.103.0
v0.104.0
v0.105.0
v0.106.0
v0.107.0
v0.108.0
v0.109.0
v0.11.0
v0.110.0
v0.111.0
v0.112.0
v0.113.0
v0.114.0
v0.115.0
v0.116.0
v0.117.0
v0.118.0
v0.119.0
v0.12.0
v0.120.0
v0.121.0
v0.122.0
v0.123.0
v0.124.0
v0.125.0
v0.126.0
v0.127.0
v0.128.0
v0.129.0
v0.13.0
v0.130.0
v0.131.0
v0.132.0
v0.133.0
v0.134.0
v0.135.0
v0.136.0
v0.137.0
v0.138.0
v0.139.0
v0.14.0
v0.140.0
v0.141.0
v0.142.0
v0.143.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.19.0
v0.2.0
v0.20.0
v0.21.0
v0.22.0
v0.22.1
v0.23.0
v0.24.0
v0.25.0
v0.26.0
v0.27.0
v0.28.0
v0.29.0
v0.3.0
v0.3.1
v0.30.0
v0.31.0
v0.32.0
v0.33.0
v0.34.0
v0.35.0
v0.36.0
v0.37.0
v0.38.0
v0.39.0
v0.4.0
v0.40.0
v0.41.0
v0.42.0
v0.43.0
v0.44.0
v0.45.0
v0.45.1
v0.46.0
v0.47.0
v0.48.0
v0.49.0
v0.5.0
v0.5.1
v0.50.0
v0.51.0
v0.52.0
v0.53.0
v0.54.0
v0.55.0
v0.56.0
v0.57.0
v0.58.0
v0.59.0
v0.6.0
v0.60.0
v0.61.0
v0.62.0
v0.63.0
v0.64.0
v0.65.0
v0.66.0
v0.67.0
v0.68.0
v0.69.0
v0.7.0
v0.70.0
v0.71.0
v0.72.0
v0.73.0
v0.74.0
v0.75.0
v0.76.0
v0.77.0
v0.78.0
v0.79.0
v0.8.0
v0.80.0
v0.81.0
v0.82.0
v0.83.0
v0.84.0
v0.85.0
v0.86.0
v0.87.0
v0.88.0
v0.89.0
v0.9.0
v0.90.0
v0.91.0
v0.92.0
v0.93.0
v0.94.0
v0.95.0
v0.96.0
v0.97.0
v0.98.0
v0.99.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-73502.json"