Skip to content
OpenAdvisories
Medium · 5.4 CVE-2026-111921 EUVD-2026-103289GHSA-92qc-qm37-9wr9GHSA-fmmf-xq98-g327GO-2026-6730

Vikunja 0.13.0 before 2.7.0 Incorrect Authorization in Link Share Deletion

Published Oct 17, 2026 · Updated Oct 21, 2026 · Assigned by VulnCheck

Description

Vikunja 0.13.0 before 2.7.0 contains an incorrect authorization vulnerability that allows project members with Write permission to delete admin-tier link shares because the delete permission check reads an unloaded share object. Attackers can send DELETE requests to the v1 or v2 projects shares endpoints with sequential share IDs to revoke admin links and invalidate existing share sessions.

Affected products

VendorProductAffectedFixed
go-vikunja vikunja 0.13.0 – < 2.7.0 2.7.0

Affected packages

EcosystemPackageAffectedFixedRecord
Go code.vikunja.io/api >= 0.13.0, < 2.7.0 2.7.0 GHSA-fmmf-xq98-g327
Go code.vikunja.io/api all versions — GO-2026-6730

References