Vulnerability Description
Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password reset tokens to be reused indefinitely. Due to a failure to invalidate tokens upon use and a critical logic bug in the token cleanup cron job, reset tokens remain valid forever. This allows an attacker who intercepts a single reset token (via logs, browser history, or phishing) to perform a complete, persistent account takeover at any point in the future, bypassing standard authentication controls. Version 2.1.0 contains a patch for the issue.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vikunja | Vikunja | < 2.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/go-vikunja/vikunja/commit/5c2195f9fca9ad208477e865e6009c37889Patch
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rfjg-6m84-crj2Vendor Advisory
- https://vikunja.io/changelog/vikunja-v2.1.0-was-releasedRelease Notes
FAQ
What is CVE-2026-28268?
CVE-2026-28268 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password r...
How severe is CVE-2026-28268?
CVE-2026-28268 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-28268?
Check the references section above for vendor advisories and patch information. Affected products include: Vikunja Vikunja.