CVE-2026-27575

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

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.

Affected

go-vikunja · vikunja

CVSS v3.1 GITHUB

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

EPSS

0.46% chance of exploitation in the next 30 days, 39th percentile

Published

2026-02-25

Updated

2026-02-26

Proof-of-concept exploits (1)

• advisories/GHSA-3ccg-x393-96v8

Security advisories

• go-vikunja/vikunja/security/advisories/GHSA-3ccg-x393-96v8
• https://vikunja.io/changelog/vikunja-v2.0.0-was-released

References

• CVE Record
• NVD entry