Auth bypass in Go-vikunja Vikunja
CVE-2026-33676
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the `related_tasks` field with full task objects for all related tasks without checking whether the re…
Vulnerability class: Broken Access Control
EPSS: 0.003 (25.2th percentile) — read the EPSS interpretation.
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:H/I:N/A:N.
Affected products
- Go-vikunja Vikunja — versions < 2.2.1
- Vikunja
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-33676?
- CVE-2026-33676 is a medium-severity vulnerability in Go-vikunja Vikunja, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-03-24.
- How severe is CVE-2026-33676?
- Medium severity. CVSS v3 base score is 6.5 out of 10.