CVE-2026-33679
MEDIUMVikunja has SSRF via OpenID Connect Avatar Download that Bypasses Webhook SSRF Protections
Title source: cnaDescription
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.
Scores
CVSS v3
6.4
EPSS
0.0004
EPSS Percentile
12.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L
Details
CWE
CWE-918
Status
published
Products (3)
code.vikunja.io/api
0 - 2.2.1Go
go-vikunja/vikunja
< 2.2.1
vikunja/vikunja
< 2.2.1
Published
Mar 24, 2026
Tracked Since
Mar 24, 2026