CVE-2026-40103
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's scoped API token enforcement for custom project background routes is method-confused. A token with only projects.background can successfully delete a project background, while a token with only projects.background_delete is rejected. This is a scoped-token authorization bypass. This vulnerability is fixed in 2.3.0.
- Affected products
- Vikunja
- Vikunja
- < 2.3.0
- Fix
- Available
- CVSS 3.1
- 5.4 MEDIUM
- EPSS
- 0.2% (13th percentile)
- Weakness
- CWE-836
- NVD status
- Analyzed
- Published
- 2026-04-10
CVE-2026-40103 at NVD
No indexed exploits for CVE-2026-40103 yet
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No exploit for CVE-2026-40103 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.