{"id":"CVE-2026-44794","aliases":["GHSA-wpxj-44w3-2j6x","PYSEC-2026-2225"],"url":"https://o3.security/vulnerability/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>)","published":"2026-05-28T17:01:21.400Z","modified":"2026-08-12T03:51:48.327921445Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"epss":{"score":0.00177,"percentile":0.07274,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"nautobot","fixedVersion":"3.1.2"},{"ecosystem":"PyPI","name":"nautobot","fixedVersion":"2.4.33"}],"fix":{"url":"https://github.com/nautobot/nautobot/commit/36cde7148a207234de6212ec074f321dbc9d1b5b","label":"nautobot/nautobot@36cde71"},"references":[{"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"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44794.json"},{"type":"ADVISORY","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":"FIX","url":"https://github.com/nautobot/nautobot/commit/36cde7148a207234de6212ec074f321dbc9d1b5b"},{"type":"FIX","url":"https://github.com/nautobot/nautobot/commit/9918bdb9bcf1eb42cda72c344f420a64ef7665f1"},{"type":"PACKAGE","url":"https://github.com/nautobot/nautobot"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.327921445Z"}}