CVE-2026-33700
March 24, 2026
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the "DELETE /api/v1/projects/:project/shares/:share" endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares from other projects by providing their own project ID combined with the target share ID. Version 2.2.1 patches the issue.
Affected Packages
code.vikunja.io/api (GO):
Affected version(s) >=v0.13.1 <v2.2.1Fix Suggestion:
Update to version v2.2.1github.com/go-vikunja/vikunja (GO):
Affected version(s) >=v0.1 <v2.2.1Fix Suggestion:
Update to version v2.2.1github.com/go-vikunja/vikunja (GO):
Affected version(s) >=v0.1 <v2.2.1Fix Suggestion:
Update to version v2.2.1code.vikunja.io/api (GO):
Affected version(s) >=v0.13.1 <v2.2.1Fix Suggestion:
Update to version v2.2.1github.com/go-vikunja/vikunja (GO):
Affected version(s) >=v0.1 <v2.2.1Fix Suggestion:
Update to version v2.2.1code.vikunja.io/api (GO):
Affected version(s) >=v0.13.1 <v2.2.1Fix Suggestion:
Update to version v2.2.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
EPSS
Base Score:
0.04
