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Description

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.

PUBLISHED Reserved 2026-03-23 | Published 2026-03-24 | Updated 2026-03-24 | Assigner GitHub_M




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L

Problem types

CWE-918: Server-Side Request Forgery (SSRF)

Product status

< 2.2.1
affected

References

github.com/...ikunja/security/advisories/GHSA-g66v-54v9-52pr exploit

github.com/...ikunja/security/advisories/GHSA-g66v-54v9-52pr

github.com/...ommit/93297742236e3d33af72c993e5da960db01d259e

vikunja.io/changelog/vikunja-v2.2.2-was-released

cve.org (CVE-2026-33675)

nvd.nist.gov (CVE-2026-33675)

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