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CVE-2026-35596

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

Published: Apr 10, 2026Updated: Apr 17, 2026 Sources: CVE List NVDCWE-863
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.3%
Top 81.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-863

Affected Products

vikunjavikunja
On-prem
Enterprise Software / collaboration-groupware
vikunjago-vikunja
On-prem
Cloud & SaaS / saas-application
vikunjaoss-projectEnterprise Software
go-vikunjaoss-projectCloud & SaaSaka vikunja

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/go-vikunja/vikunja/commit/fc216c38afaa51dd56dde7a97343d2148ecf24c1
github.com
https://github.com/go-vikunja/vikunja/pull/2578
github.com
https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0
github.com
and 1 more references View all →

Timeline

Published
Apr 10, 2026
Last Updated
Apr 17, 2026

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