⚠ Withdrawn by GitHub Security Advisories

Withdrawn: October 9, 2026

GHSA-69rj-q3v9-vffpHighCVSS 6.5Disclosed before NVD

Duplicate Advisory: Vikunja: Unbounded image decode on avatar and project-background uploads enables decode/resize amplification

Published
September 15, 2026
Last Modified
October 9, 2026

📋 Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-4vh2-39rq-rq8j. This link is maintained to preserve external references.

Original Description

Vikunja before 2.6.0 fails to apply pixel decode limits to avatar and project-background upload endpoints, allowing authenticated users to upload crafted images that decode to excessive pixel counts. Attackers can upload small images with extreme aspect ratios that consume significant CPU and memory during processing, causing denial of service through repeated or concurrent uploads.

🎯 Affected products1

  • go/code.vikunja.io/api:<= 2.5.0

🔗 References (4)