Vulnerability Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `DownloadImage` function in `pkg/utils/avatar.go` uses a bare `http.Client{}` with no SSRF protection when downloading user avatar images from the OpenID Connect `picture` claim URL. An attacker who controls their OIDC profile picture URL can force the Vikunja server to make HTTP GET requests to arbitrary internal or cloud metadata endpoints. This bypasses the SSRF protections that are correctly applied to the webhook system. Version 2.2.1 patches the issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vikunja | Vikunja | < 2.2.1 |
Related Weaknesses (CWE)
References
- https://github.com/go-vikunja/vikunja/commit/363aa6642352b08fc8bc6aaff2f3a550393Patch
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g9xj-752q-xh63ExploitVendor Advisory
- https://vikunja.io/changelog/vikunja-v2.2.2-was-releasedRelease Notes
FAQ
What is CVE-2026-33679?
CVE-2026-33679 is a vulnerability with a CVSS score of 6.4 (MEDIUM). Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `DownloadImage` function in `pkg/utils/avatar.go` uses a bare `http.Client{}` with no SSRF protection when d...
How severe is CVE-2026-33679?
CVE-2026-33679 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33679?
Check the references section above for vendor advisories and patch information. Affected products include: Vikunja Vikunja.