CVE catalog
CVE-2026-35594
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 obje
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.30% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | vikunja | Not reported | 2.3.0 | fixed |
| Cpe | vikunja | Not reported | 2.3.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | vikunja | cpe | Not reported | 2.3.0 | Not reported | Not reported | Not reported |
| Cpe | vikunja | cpe | Not reported | 2.3.0 | Not reported | NVD-CVE-2026-35594 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/go-vikunja/vikunja/commit/379d8a5c19334ffe4846003f590e202c31a75479]
- [https://github.com/go-vikunja/vikunja/pull/2581]
- [https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0]
- [https://github.com/go-vikunja/vikunja/security/advisories/GHSA-96q5-xm3p-7m84]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-35594]