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Description

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to set weak passwords (e.g., 1234, password) without enforcing minimum strength requirements. Additionally, active sessions remain valid after a user changes their password. An attacker who compromises an account (via brute-force or credential stuffing) can maintain persistent access even after the victim resets their password. Version 2.0.0 contains a fix.

PUBLISHED Reserved 2026-02-20 | Published 2026-02-25 | Updated 2026-02-26 | Assigner GitHub_M




CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-521: Weak Password Requirements

CWE-613: Insufficient Session Expiration

Product status

< 2.0.0
affected

References

github.com/...ikunja/security/advisories/GHSA-3ccg-x393-96v8

vikunja.io/changelog/vikunja-v2.0.0-was-released

cve.org (CVE-2026-27575)

nvd.nist.gov (CVE-2026-27575)

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