SSRF in Go-Vikunja Vikunja
CVE-2026-33675
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (30.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Go-Vikunja Vikunja — versions < 2.2.1
- Vikunja
Weakness classification (CWE)
References
- github.com/go-vikunja/vikunja/security/advisories/GHSA-g66v-54v9-52pr (Exploit, Vendor Advisory)
- github.com/go-vikunja/vikunja/commit/93297742236e3d33af72c993e5da960db01d259e (Patch)
- vikunja.io/changelog/vikunja-v2.2.2-was-released (Release Notes)
Frequently asked questions
- What is CVE-2026-33675?
- CVE-2026-33675 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.4/10. Published 2026-03-24.
- How severe is CVE-2026-33675?
- Medium severity. CVSS v3 base score is 6.4 out of 10.