CVEvulnerability
CVE-2026-35594
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-10
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-613
Description
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's link share authentication (GetLinkShareFromClaims in pkg/models/link_sharing.go) constructs authorization objects entirely from JWT claims without any server-side database validation. When a project owner deletes a link share or downgrades its permissions, all previously issued JWTs continue to grant the original permission level for up to 72 hours (the default service.jwtttl). This vulnerability is fixed in 2.3.0.
Affected configurations
• vikunja vikunja (< 2.3.0)
Related
Weakness · not in database (1)
References
- https://github.com/go-vikunja/vikunja/commit/379d8a5c19334ffe4846003f590e202c31a75479 Patch
- https://github.com/go-vikunja/vikunja/pull/2581 Issue Tracking
- https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 Release Notes
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-96q5-xm3p-7m84 Exploit, Vendor Advisory
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-96q5-xm3p-7m84 Exploit, Vendor Advisory