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

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Summary

CVECVE-2026-35596
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-10 17:17:03 UTC
Updated2026-04-10 17:17:03 UTC
DescriptionVikunja 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

Problem Types: CWE-863 | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Go-vikunja Vikunja affected < 2.3.0 Not specified

References

ReferenceSourceLinkTags
github.com/go-vikunja/vikunja/commit/fc216c38afaa51dd56dde7a97343d2148ec... [email protected] github.com
github.com/go-vikunja/vikunja/releases/tag/v2.3.0 [email protected] github.com
github.com/go-vikunja/vikunja/security/advisories/GHSA-hj5c-mhh2-g7jq [email protected] github.com
github.com/go-vikunja/vikunja/pull/2578 [email protected] github.com
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