CVE-2026-27575

critical · 9.1

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.

9.1

CVSS

0.4%

EPSS (exploit prob.)

37th

EPSS percentile

2026-02-25

Published

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

Weaknesses

CWE-521CWE-613

Affected products

Vendor	Product	Affected versions
vikunja	vikunja	< 2.0.0

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-27575