CVE-2026-33679

Medium

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.

SeverityMedium

CVSS6.4

Exploit probability—

ProductVikunja

PublishedMar 24, 2026

First seenMar 24, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

vikunja vikunja2.2.1 or later
code.vikunja.io/api2.2.1 or later

Affected products

Product	Affected versions	Fixed in
vikunja vikunja	v < 2.2.1	2.2.1
code.vikunja.io/apiGo	v < 2.2.1, No range specified	2.2.1

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