CVE-2026-33315: Vikunja has a 2FA Bypass via Caldav Basic Auth
(updated )
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.
References
- github.com/advisories/GHSA-47cr-f226-r4pq
- github.com/go-vikunja/vikunja
- github.com/go-vikunja/vikunja/commit/cdf5d30a425d032f749b78b98b828f25ad882615
- github.com/go-vikunja/vikunja/security/advisories/GHSA-47cr-f226-r4pq
- nvd.nist.gov/vuln/detail/CVE-2026-33315
- vikunja.io/changelog/vikunja-v2.2.0-was-released
Code Behaviors & Features
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