CVE-2026-35596

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

CVSS 4.3 MEDIUMEPSS 0.3%CWE-863

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

go-vikunja · vikunja

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References

https://github.com/go-vikunja/vikunja/commit/fc216c38afaa51dd56dde7a97343d2148ecf24c1 https://github.com/go-vikunja/vikunja/pull/2578 https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hj5c-mhh2-g7jq