CVE-2026-33474

MEDIUM

Vikunja Affected by DoS via Image Preview Generation

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2
Core References

Scores

CVSS v3 6.5
EPSS 0.0032
EPSS Percentile 23.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (3)
code.vikunja.io/api 1.0.0-rc0 - 2.2.0Go
go-vikunja/vikunja >= 1.0.0-rc0, < 2.2.0
vikunja/vikunja 1.0.0 - 2.2.0
Published Mar 24, 2026
Tracked Since Mar 24, 2026