CVE-2026-35602 — Vikunja has a File Size Limit Bypass via Vikunja Import
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the Vikunja file import endpoint uses the attacker-controlled Size field from the JSON metadata i…
Published: 2026-04-10 · CVSS: 5.4 · CVSS 3.1
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the Vikunja file import endpoint uses the attacker-controlled Size field from the JSON metadata inside the import zip instead of the actual decompressed file content length for the file size enforcement check. By setting Size to 0 in the JSON while including large compressed file entries in the zip, an attacker bypasses the configured maximum file size limit. This vulnerability is fixed in 2.3.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7