Medium 6.5Published Oct 28, 2026

CVE-2026-82411Objects API: Cross-object-type authorization bypass on the object history-detail endpoint

Updated under an hour ago (Oct 29, 2026, 10:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Open Object provides an API and admin interface to manage objects and object types. From 2.4.3 until 2.5.1, 3.6.2, 4.0.2, and 4.1.1, a token scoped to read one ObjectType can read the full versioned record of an object of any other ObjectType via the history-detail endpoint `GET /api/v2/objects/{uuid}/{index}`. The `history_detail` action in `src/objects/api/v2/views.py` calls `self.get_queryset()` and `get_object_or_404` directly instead of `self.get_object()`, so `check_object_permissions` and the per-object check in `ObjectTypeBasedPermission.has_object_permission` are not invoked. The queryset's `filter_for_token` applies only to the list and search actions, while `ObjectTypeBasedPermission.has_permission` allows non-create actions, leaving neither check to constrain history-detail records to the token's permitted ObjectType. The normal retrieve endpoint returns 403 for the same unauthorized object, and the sibling history action enforces the grant. Any valid non-superuser API token with a read grant on at least one ObjectType can therefore disclose another ObjectType's complete versioned object `data`, which can include citizen or case records and sensitive identifiers in government deployments. This issue is fixed in versions 2.5.1, 3.6.2, 4.0.2, and 4.1.1.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 29, 2026
First seen by InfoSec Signals: Oct 28, 2026

Affected products

Affected products

maykinmedia open-object maykinmedia:open_object (from the name)	from 2.4.3, < 2.5.1; from 3.0.0, < 3.6.2; from 4.0.0-rc.1, < 4.0.2; from 4.1.0, < 4.1.1	CNA record

References

References

https://github.com/maykinmedia/open-object/security/advisories/GHSA-55w6-rqp5-j5wx	x-refsource-confirm
https://github.com/maykinmedia/open-object/commit/11c5b85ea5d1d80f940883f01b8b8ea80ccdd47c	x-refsource-misc
https://github.com/maykinmedia/open-object/commit/27e806eff04c52ebe1e78126c288b63fc0308b52	x-refsource-misc
https://github.com/maykinmedia/open-object/commit/6154d9c2ed8c162b61f2d42db2de4eda5081347f	x-refsource-misc
https://github.com/maykinmedia/open-object/commit/ce6b1820619c843748bc5231597aa7fc060d95fe	x-refsource-misc
https://github.com/maykinmedia/open-object/tree/2.5.1	x-refsource-misc
https://github.com/maykinmedia/open-object/tree/3.6.2	x-refsource-misc
https://github.com/maykinmedia/open-object/tree/4.0.2	x-refsource-misc
https://github.com/maykinmedia/open-object/tree/4.1.1	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.