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OpenAdvisories
Medium · 4.3 CVE-2026-35596 EUVD-2026-21420GHSA-hj5c-mhh2-g7jqGO-2026-5428

Vikunja has Broken Access Control on Label Read via SQL Operator Precedence Bug

Published Apr 10, 2026 · Updated Apr 14, 2026 · Assigned by GitHub_M

Description

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the hasAccessToLabel function contains a SQL operator precedence bug that allows any authenticated user to read any label that has at least one task association, regardless of project access. Label titles, descriptions, colors, and creator information are exposed. This vulnerability is fixed in 2.3.0.

Affected products

VendorProductAffectedFixed
go-vikunja vikunja < 2.3.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go code.vikunja.io/api < 2.3.0 2.3.0 GHSA-hj5c-mhh2-g7jq
Go code.vikunja.io/api all versions — GO-2026-5428

Advisories 1

References