{"id":"CVE-2026-44794","aliases":["GHSA-wpxj-44w3-2j6x","PYSEC-2026-2225"],"title":"Nautobot: REST API permits creation of GenericForeignKey references to objects that the user should not be able to reference","summary":"Nautobot: REST API permits creation of GenericForeignKey references to objects that the user should not be able to reference","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","vendor":"nautobot","product":"nautobot","ecosystem":"pip","affected":["nautobot >= 3.0.0a2, < 3.1.2","nautobot < 2.4.33"],"patched":["nautobot 3.1.2","nautobot 2.4.33"],"published":"2026-05-13","updated":"2026-07-13","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-wpxj-44w3-2j6x","references":[{"url":"https://github.com/nautobot/nautobot/security/advisories/GHSA-wpxj-44w3-2j6x"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44794"},{"url":"https://github.com/nautobot/nautobot/commit/36cde7148a207234de6212ec074f321dbc9d1b5b"},{"url":"https://github.com/nautobot/nautobot/commit/9918bdb9bcf1eb42cda72c344f420a64ef7665f1"},{"url":"https://github.com/nautobot/nautobot"},{"url":"https://github.com/nautobot/nautobot/releases/tag/v2.4.33"},{"url":"https://github.com/nautobot/nautobot/releases/tag/v3.1.2"}],"tags":["osv","pip"],"epss":0.00177,"epssPercentile":0.07525,"ingestedAt":"2026-07-13T18:58:04.685Z","slug":"CVE-2026-44794","body":"## Overview\n\n### 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>)\n\n## Affected packages\n\n- `nautobot >= 3.0.0a2, < 3.1.2`\n- `nautobot < 2.4.33`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `nautobot 3.1.2`\n- `nautobot 2.4.33`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}