CVE-2026-33473 | BDVDB-2026-322335 Detail

go-vikunjavikunja

Description#

Vikunja is an open-source self-hosted task management platform. Starting in version 0.13 and prior to version 2.2.1, any user that has enabled 2FA can have their TOTP reused during the standard 30 second validity window. Version 2.2.1 patches the issue.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-287 Improper Authentication

References#

Exploit#

No public exploit known

History#

Version 12026-03-24Record published in the CVE List.

Published

Published: 2026-03-24
Last modified: 2026-03-24

Vendor information

Vendor: go-vikunja
Product: vikunja

All go-vikunja vulnerabilities

Score

5.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 26.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 0.13, < 2.2.1
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.7 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).