CVE-2026-33474

Vikunja Affected by DoS via Image Preview Generation

State: Published
Severity: 6.5 Medium
Published: Mar 24, 2026
Updated: Mar 24, 2026
Reserved: Mar 20, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
vikunjago-vikunja	>= 1.0.0-rc0, < 2.2.0Affected

References

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-wc83-79hj-hpmq
https://vikunja.io/changelog/vikunja-v2.2.0-was-released

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