CVE-2026-35594
MEDIUMVikunja Link Share JWT tokens remain valid for 72 hours after share deletion or permission downgrade
Title source: cnaDescription
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.
Scores
CVSS v3
6.5
EPSS
0.0007
EPSS Percentile
20.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Details
CWE
CWE-613
Status
published
Products (2)
code.vikunja.io/api
0 - 2.3.0Go
go-vikunja/vikunja
< 2.3.0
Published
Apr 10, 2026
Tracked Since
Apr 10, 2026