CVE-2026-44794: Nautobot REST API Permits Creation Of Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wpxj-44w3-2j6x",
  "modified" : "2026-06-09T02:01:03Z",
  "published" : "2026-05-13T15:30:46Z",
  "aliases" : [ "CVE-2026-44794" ],
  "summary" : "Nautobot: REST API permits creation of GenericForeignKey references to objects that the user should not be able to reference",
  "details" : "### Impact\n\nIn the case of inter-object references via `GenericForeignKey` (a pattern allowing an object to reference another object that may belong to one of several different \"content types\" or database tables), when creating or updating an object containing a `GenericForeignKey`, Nautobot's REST API failed to enforce user \"view\" permissions when determining whether a given reference to another object would be valid. \n\nAs a concrete example, a user:\n\n- who has permission to create or update `ImageAttachment` records\n- but who lacks permission to view (some or all) `Device` records\n- _but who knows (via some other mechanism) the UUID of a specific `Device` that they do not otherwise have access to_\n\ncould create via the REST API an `ImageAttachment` linked to that specific `Device`.\n\nOther models that use `GenericForeignKey` and may be writable via the REST API, and hence have a similar vulnerability to `ImageAttachment`, may include:\n\n- `ApprovalWorkflow`\n- `Cable`\n- `ConfigContext`\n- `ContactAssociation`\n- `DataCompliance`\n- `Device`\n- `ExportTemplate`\n- `GraphQLQuery`\n- `Note`\n- `ObjectMetadata`\n- `RelationshipAssociation`\n- `StaticGroupAssociation`\n- `VirtualMachine`\n\nAdditionally, any Nautobot Apps that provide models with a REST API and use GenericForeignKey may have a similar vulnerability for their models.\n\n### Patches\n\nA general-purpose fix has been implemented in Nautobot 2.4.33 and 3.1.2, which ensures correct application of \"view\" permissions when creating or modifying object references via `GenericForeignKey` throughout the REST API. Individual models/views/serializers generally will not require any specific code changes to benefit from this fix.\n\n### Workarounds\n\nNo known workarounds at this time.\n\n### References\n\n- 2.4.33 (<a href=\"https://github.com/nautobot/nautobot/commit/9918bdb9bcf1eb42cda72c344f420a64ef7665f1\">patch</a>)\n- 3.1.2 (<a href=\"https://github.com/nautobot/nautobot/commit/36cde7148a207234de6212ec074f321dbc9d1b5b\">patch</a>)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "nautobot"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0a2"
      }, {
        "fixed" : "3.1.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "nautobot"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.4.33"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/security/advisories/GHSA-wpxj-44w3-2j6x"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-44794"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/commit/36cde7148a207234de6212ec074f321dbc9d1b5b"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/commit/9918bdb9bcf1eb42cda72c344f420a64ef7665f1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nautobot/nautobot"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/releases/tag/v2.4.33"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/releases/tag/v3.1.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-13T15:30:46Z",
    "nvd_published_at" : "2026-05-28T18:16:33Z"
  }
}