What is CVE-2026-33474?

CVE-2026-33474 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-03-24.

How severe is CVE-2026-33474?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Go-Vikunja Vikunja

CVE-2026-33474

Vikunja is an open-source self-hosted task management platform. Starting in version 1.0.0-rc0 and prior to version 2.2.0, unbounded image decoding and resizing during preview generation lets an attacker exhaust CPU and memory with highly compressed but extremely large-dimension images. Version 2.2.0 patches the issue.

Vulnerability class: DoS (Denial of Service)

Published 2026-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Go-Vikunja Vikunja — versions >= 1.0.0-rc0, < 2.2.0
Vikunja

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

github.com/go-vikunja/vikunja/security/advisories/GHSA-wc83-79hj-hpmq (Exploit, Vendor Advisory)
vikunja.io/changelog/vikunja-v2.2.0-was-released (Release Notes)

Frequently asked questions

What is CVE-2026-33474?: CVE-2026-33474 is a medium-severity vulnerability in Go-Vikunja Vikunja, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-03-24.
How severe is CVE-2026-33474?: Medium severity. CVSS v3 base score is 6.5 out of 10.