CVE-2026-33679

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 v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://github.com/go-vikunja/vikunja/commit/363aa6642352b08fc8bc6aaff2f3a550393af1cf	Patch
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g9xj-752q-xh63	Exploit Vendor Advisory
https://vikunja.io/changelog/vikunja-v2.2.2-was-released	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-24 16:16

Updated : 2026-06-17 10:37

NVD link : CVE-2026-33679

Mitre link : CVE-2026-33679

CVE.ORG link : CVE-2026-33679

JSON object : View

Products Affected

vikunja

vikunja

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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