CVE-2026-35596

MEDIUM

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

Title source: cna

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.

References (4)

[X_Refsource_Confirm] https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hj5c-mhh2-g7jq

[X_Refsource_Misc] https://github.com/go-vikunja/vikunja/pull/2578

[X_Refsource_Misc] https://github.com/go-vikunja/vikunja/commit/fc216c38afaa51dd56dde7a97343d2148ecf24c1

View Writeup ZIP pw:eip

[X_Refsource_Misc] https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0

Scores

CVSS v3 4.3

EPSS 0.0003

EPSS Percentile 8.2%

Attack Vector NETWORK

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

Details

CWE

CWE-863

Status published

Products (3)

code.vikunja.io/api 0 - 2.3.0Go

go-vikunja/vikunja < 2.3.0

vikunja/vikunja < 2.3.0

Published Apr 10, 2026

Tracked Since Apr 10, 2026