Auth bypass in Tandoor Recipes
CVE-2026-28503
Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. In versions prior to 2.6.0, the `SyncViewSet.query_synced_folder()` action in `cookbook/views/api.py` (line 903) fetches a Sync object using `get_object_or_404(Sync, pk=pk)` without including `space=request.space` in the filter. This allows an admin user in Space A to trigger sync operations (Dropbox/Nextcloud/Local import) on Sync configurations belonging to Space B, and view the resulting sync logs. Version 2.6.0 patches the issue.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.003 (22.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Tandoor Recipes
- Tandoorrecipes Recipes — versions < 2.6.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-28503?
- CVE-2026-28503 is a medium-severity vulnerability in Tandoor Recipes, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-26.
- How severe is CVE-2026-28503?
- Medium severity. CVSS v3 base score is 6.5 out of 10.