Quick answers
- Is CVE-2026-61663 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-61663 being exploited in the wild.
- How severe is CVE-2026-61663?
- Medium severity, with a CVSS score of 4.3, published 20 August 2026.
- Which products and versions are affected?
- django-cms (PyPI) < 5.0.9, ECOSYSTEM:introduced=0,fixed=5.0.9.
- Is there a fix for CVE-2026-61663?
- Yes. django-cms (PyPI): upgrade to 5.0.9 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-61663 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-61663?
- Check whether you run django-cms (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- django-cms (PyPI): upgrade to 5.0.9 or later
pip install "django-cms>=5.0.9"
Technical details
The `render_object_structure` view in django CMS processes requests to the endpoint `GET /<lang>/admin/cms/placeholder/object/<content_type_id>/structure/<object_id>/` to expose CMS structure metadata for frontend editing. For non-PageContent objects (those using PlaceholderRelationField), the view did not perform object-level authorization checks before returning the structure. An authenticated staff user could enumerate or guess the content_type_id and object_id to retrieve placeholder/plugin trees of any object in the system, bypassing both model-level change permissions and the `cms.use_structure` permission. PageContent objects were already protected via a separate check. The vulnerability is read-only, disclosing structure metadata (placeholder slot names, plugin tree, plugin identifiers) rather than field data or edit access. Fix available in version 5.0.9 and later, which applies object-level authorization mirroring `Placeholder.has_change_permission`, returning HTTP 404 when unauthorized.
Affected products
- Django CMS Project django-cms 4.0.0 through 5.0.x, and 5.1.0a1
Identifiers
- CVE-2026-61663
- GHSA-8qj2-c6q4-f399
- PYSEC-2026-3823
Timeline
- 2026-08-20: disclosed: Advisory published to GitHub Advisory Database
- 2026: patched: Fixed in version 5.0.9