CVE-2026-33679

Name: CVE-2026-33679
Creator: NVD / NIST
Published: 2026-03-24T16:16:35.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2026-33679 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. 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. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

EPSS Probability

0.33%

25.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Vikunja	Vikunja	< 2.2.1

References

https://github.com/go-vikunja/vikunja/commit/363aa6642352b08fc8bc6aaff2f3a550393af1cfPatch
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g9xj-752q-xh63Exploit, Vendor Advisory
https://vikunja.io/changelog/vikunja-v2.2.2-was-releasedRelease Notes

Timeline

Published: Mar 24, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-33679?

How severe is CVE-2026-33679?

CVE-2026-33679 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2026-33679?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-33679?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST