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CVE-2026-33675

MEDIUM

6.4

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.

CVE Details

CVSS v3.1 Score6.4

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/24/2026

Last Modified3/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

vikunja:vikunja

Weaknesses (CWE)

CWE-918

References

https://github.com/go-vikunja/vikunja/commit/93297742236e3d33af72c993e5da960db01d259e(security-advisories@github.com)

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g66v-54v9-52pr(security-advisories@github.com)

https://vikunja.io/changelog/vikunja-v2.2.2-was-released(security-advisories@github.com)

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g66v-54v9-52pr(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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