What is CVE-2026-34727?

CVE-2026-34727 is a high-severity vulnerability in Go-vikunja Vikunja, classified under Improper Authentication. CVSS score: 7.4/10. Published 2026-04-10.

How severe is CVE-2026-34727?

High severity. CVSS v3 base score is 7.4 out of 10.

Auth bypass in Go-vikunja Vikunja

CVE-2026-34727

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the OIDC callback handler issues a full JWT token without checking whether the matched user has TOTP two-factor authentication enabled. When a local user with…

Vulnerability class: Broken Authentication

EPSS: 0.001 (20.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Go-vikunja Vikunja — versions < 2.3.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8jvc-mcx6-r4cg (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-34727?: CVE-2026-34727 is a high-severity vulnerability in Go-vikunja Vikunja, classified under Improper Authentication. CVSS score: 7.4/10. Published 2026-04-10.
How severe is CVE-2026-34727?: High severity. CVSS v3 base score is 7.4 out of 10.