CVE-2026-27575

Vijkunja has Weak Password Policy Combined with Persistent Sessions After Password Change

State: Published
Severity: 9.1 Critical
Published: Feb 25, 2026
Updated: Feb 26, 2026
Reserved: Feb 20, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-521 Weak Password Requirements
CWE-613 Insufficient Session Expiration

Affected Products

Product	Versions
vikunjago-vikunja	< 2.0.0Affected

References

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