CVE-2026-33675
March 24, 2026
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the migration helper functions "DownloadFile" and "DownloadFileWithHeaders" in "pkg/modules/migration/helpers.go" make arbitrary HTTP GET requests without any SSRF protection. When a user triggers a Todoist or Trello migration, file attachment URLs from the third-party API response are passed directly to these functions, allowing an attacker to force the Vikunja server to fetch internal network resources and return the response as a downloadable task attachment. 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 v2.2.1code.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 v2.2.1Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
LOW
CVSS v3
Base Score:
6.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
EPSS
Base Score:
0.03
