CVE-2026-35595
Description
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CanUpdate check at pkg/models/project_permissions.go:139-148 only requires CanWrite on the new parent project when changing parent_project_id. However, Vikunja's permission model uses a recursive CTE that walks up the project hierarchy to compute permissions. Moving a project under a different parent changes the permission inheritance chain. When a user has inherited Write access (from a parent project share) and reparents the child project under their own project tree, the CTE resolves their ownership of the new parent as Admin (permission level 2) on the moved project. This vulnerability is fixed in 2.3.0.
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
1Patches
1c03d682f48aftest(project): fix ParadeDB search expectation for fixture child
1 file changed · +4 −1
pkg/models/project_test.go+4 −1 modified@@ -591,12 +591,15 @@ func TestProject_ReadAll(t *testing.T) { if db.ParadeDBAvailable() { // ParadeDB fuzzy(1, prefix=true) on "TEST10" also matches // "test1", "test11", "test19", "test30" (edit distance 1), etc. - require.Len(t, ls, 6) + // The recursive CTE also pulls in project 43 as a child of the + // matched project 10 (reparent-escalation fixture). + require.Len(t, ls, 7) projectIDs := make([]int64, len(ls)) for i, p := range ls { projectIDs[i] = p.ID } assert.Contains(t, projectIDs, int64(10)) + assert.Contains(t, projectIDs, int64(43)) assert.Contains(t, projectIDs, int64(-1)) } else { // Expect project 10 (the search target), project 43 (its child —
Vulnerability mechanics
Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
6- github.com/go-vikunja/vikunja/commit/c03d682f48aff890eeb3c8b41d38226069722827nvdPatchWEB
- github.com/go-vikunja/vikunja/security/advisories/GHSA-2vq4-854f-5c72nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-2vq4-854f-5c72ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-35595ghsaADVISORY
- github.com/go-vikunja/vikunja/pull/2583nvdIssue TrackingWEB
- github.com/go-vikunja/vikunja/releases/tag/v2.3.0nvdRelease NotesWEB
News mentions
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