Medium severity4.3NVD Advisory· Published Apr 10, 2026· Updated Apr 17, 2026
CVE-2026-40103
CVE-2026-40103
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.vikunja.io/apiGo | < 2.3.0 | 2.3.0 |
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/go-vikunja/vikunja/commit/6a0f39b252a81fa4b19dc56dc889183acc9225aenvdPatchWEB
- github.com/go-vikunja/vikunja/security/advisories/GHSA-v479-vf79-mg83nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-v479-vf79-mg83ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-40103ghsaADVISORY
- github.com/go-vikunja/vikunja/pull/2584nvdIssue TrackingWEB
- github.com/go-vikunja/vikunja/releases/tag/v2.3.0nvdRelease NotesWEB
News mentions
0No linked articles in our index yet.