What is CVE-2026-27575?

CVE-2026-27575 is a critical-severity vulnerability in Go-Vikunja Vikunja, classified under Weak Password Requirements. CVSS score: 9.1/10. Published 2026-02-25.

How severe is CVE-2026-27575?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Go-Vikunja Vikunja

CVE-2026-27575

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.

EPSS: 0.004 (35.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Go-vikunja Vikunja — versions < 2.0.0
Vikunja

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-27575?: CVE-2026-27575 is a critical-severity vulnerability in Go-Vikunja Vikunja, classified under Weak Password Requirements. CVSS score: 9.1/10. Published 2026-02-25.
How severe is CVE-2026-27575?: Critical severity. CVSS v3 base score is 9.1 out of 10.