Is CVE-2026-34727 actively exploited?

CVE-2026-34727 has no public evidence of in-the-wild exploitation as of 2026-04-20.

What is the CVSS score for CVE-2026-34727?

CVE-2026-34727 has a CVSS score of 7.4 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

How do I patch CVE-2026-34727?

Patch guidance is available from vikunja security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-34727.

Fix CVE-2026-34727 - HIGH vikunja vikunja

Description

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 TOTP enrolled is matched via the OIDC email fallback mechanism, the second factor is completely skipped. This vulnerability is fixed in 2.3.0.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-287 · Improper Authentication

Metadata

Primary Vendor: VIKUNJA
Published: 4/10/2026
Last Modified: 4/20/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-34727

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary