CVEvulnerability
CVE-2026-40103
5.4 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-10
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- Weaknesses
- CWE-836
Description
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 configurations
• vikunja vikunja (< 2.3.0)
Related
Weakness · CWE (1)
- CWE-836 Use of Password Hash Instead of Password for Authentication weakness
References
- https://github.com/go-vikunja/vikunja/commit/6a0f39b252a81fa4b19dc56dc889183acc9225ae Patch
- https://github.com/go-vikunja/vikunja/pull/2584 Issue Tracking
- https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 Release Notes
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-v479-vf79-mg83 Exploit, Vendor Advisory