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Vulnerable Software

Vulnerability Details CVE-2026-33315

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, the Caldav endpoint allows login using Basic Authentication, which in turn allows users to bypass the TOTP on 2FA-enabled accounts. The user can then access standard project information that would normally be protected behind 2FA (if enabled), such as project name, description, etc. Version 2.2.0 patches the issue.

Exploit prediction scoring system (EPSS) score

CVSS Severity

CVSS v3 Score 4.3

References

Products affected by CVE-2026-33315

Vikunja » Vikunja » Version: 0.1

cpe:2.3:a:vikunja:vikunja:0.1
Vikunja » Vikunja » Version: 0.10

cpe:2.3:a:vikunja:vikunja:0.10
Vikunja » Vikunja » Version: 0.11

cpe:2.3:a:vikunja:vikunja:0.11
Vikunja » Vikunja » Version: 0.12

cpe:2.3:a:vikunja:vikunja:0.12
Vikunja » Vikunja » Version: 0.13

cpe:2.3:a:vikunja:vikunja:0.13
Vikunja » Vikunja » Version: 0.13.1

cpe:2.3:a:vikunja:vikunja:0.13.1
Vikunja » Vikunja » Version: 0.14.0

cpe:2.3:a:vikunja:vikunja:0.14.0
Vikunja » Vikunja » Version: 0.14.1

cpe:2.3:a:vikunja:vikunja:0.14.1
Vikunja » Vikunja » Version: 0.15.0

cpe:2.3:a:vikunja:vikunja:0.15.0
Vikunja » Vikunja » Version: 0.15.1

cpe:2.3:a:vikunja:vikunja:0.15.1
Vikunja » Vikunja » Version: 0.16.0

cpe:2.3:a:vikunja:vikunja:0.16.0
Vikunja » Vikunja » Version: 0.16.1

cpe:2.3:a:vikunja:vikunja:0.16.1
Vikunja » Vikunja » Version: 0.17.0

cpe:2.3:a:vikunja:vikunja:0.17.0
Vikunja » Vikunja » Version: 0.17.1

cpe:2.3:a:vikunja:vikunja:0.17.1
Vikunja » Vikunja » Version: 0.18.0

cpe:2.3:a:vikunja:vikunja:0.18.0
Vikunja » Vikunja » Version: 0.18.1

cpe:2.3:a:vikunja:vikunja:0.18.1
Vikunja » Vikunja » Version: 0.19.0

cpe:2.3:a:vikunja:vikunja:0.19.0
Vikunja » Vikunja » Version: 0.19.1

cpe:2.3:a:vikunja:vikunja:0.19.1
Vikunja » Vikunja » Version: 0.19.2

cpe:2.3:a:vikunja:vikunja:0.19.2
Vikunja » Vikunja » Version: 0.2

cpe:2.3:a:vikunja:vikunja:0.2
Vikunja » Vikunja » Version: 0.20.0

cpe:2.3:a:vikunja:vikunja:0.20.0
Vikunja » Vikunja » Version: 0.20.1

cpe:2.3:a:vikunja:vikunja:0.20.1
Vikunja » Vikunja » Version: 0.20.2

cpe:2.3:a:vikunja:vikunja:0.20.2
Vikunja » Vikunja » Version: 0.20.3

cpe:2.3:a:vikunja:vikunja:0.20.3
Vikunja » Vikunja » Version: 0.20.4

cpe:2.3:a:vikunja:vikunja:0.20.4
Vikunja » Vikunja » Version: 0.20.5

cpe:2.3:a:vikunja:vikunja:0.20.5
Vikunja » Vikunja » Version: 0.21.0

cpe:2.3:a:vikunja:vikunja:0.21.0
Vikunja » Vikunja » Version: 0.22.0

cpe:2.3:a:vikunja:vikunja:0.22.0
Vikunja » Vikunja » Version: 0.22.1

cpe:2.3:a:vikunja:vikunja:0.22.1
Vikunja » Vikunja » Version: 0.23.0

cpe:2.3:a:vikunja:vikunja:0.23.0
Vikunja » Vikunja » Version: 0.24.0

cpe:2.3:a:vikunja:vikunja:0.24.0
Vikunja » Vikunja » Version: 0.24.1

cpe:2.3:a:vikunja:vikunja:0.24.1
Vikunja » Vikunja » Version: 0.24.2

cpe:2.3:a:vikunja:vikunja:0.24.2
Vikunja » Vikunja » Version: 0.24.3

cpe:2.3:a:vikunja:vikunja:0.24.3
Vikunja » Vikunja » Version: 0.24.4

cpe:2.3:a:vikunja:vikunja:0.24.4
Vikunja » Vikunja » Version: 0.24.5

cpe:2.3:a:vikunja:vikunja:0.24.5
Vikunja » Vikunja » Version: 0.24.6

cpe:2.3:a:vikunja:vikunja:0.24.6
Vikunja » Vikunja » Version: 0.3

cpe:2.3:a:vikunja:vikunja:0.3
Vikunja » Vikunja » Version: 0.4

cpe:2.3:a:vikunja:vikunja:0.4
Vikunja » Vikunja » Version: 0.5

cpe:2.3:a:vikunja:vikunja:0.5
Vikunja » Vikunja » Version: 0.6

cpe:2.3:a:vikunja:vikunja:0.6
Vikunja » Vikunja » Version: 0.7

cpe:2.3:a:vikunja:vikunja:0.7
Vikunja » Vikunja » Version: 0.8

cpe:2.3:a:vikunja:vikunja:0.8
Vikunja » Vikunja » Version: 0.9

cpe:2.3:a:vikunja:vikunja:0.9
Vikunja » Vikunja » Version: 1.0.0

cpe:2.3:a:vikunja:vikunja:1.0.0
Vikunja » Vikunja » Version: 1.1.0

cpe:2.3:a:vikunja:vikunja:1.1.0
Vikunja » Vikunja » Version: 2.0.0

cpe:2.3:a:vikunja:vikunja:2.0.0
Vikunja » Vikunja » Version: 2.1.0

cpe:2.3:a:vikunja:vikunja:2.1.0

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-33315

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