CVE-2026-33668 (GCVE-0-2026-33668)
Vulnerability from cvelistv5 – Published: 2026-03-24 15:30 – Updated: 2026-03-26 19:52
VLAI
EPSS
VEX
Title
Vikunja Allows Disabled/Locked User Accounts to Authenticate via API Tokens, CalDAV, and OpenID Connect
Summary
Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV basic auth, and OpenID Connect — do not verify user status, allowing disabled or locked users to continue accessing the API and syncing data. Version 2.2.1 patches the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-26 19:30 UTC
Assigner
GitHub_M
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/go-vikunja/vikunja/security/ad… | x_refsource_CONFIRM |
| https://github.com/go-vikunja/vikunja/commit/0339… | x_refsource_MISC |
| https://github.com/go-vikunja/vikunja/commit/0470… | x_refsource_MISC |
| https://github.com/go-vikunja/vikunja/commit/0b04… | x_refsource_MISC |
| https://github.com/go-vikunja/vikunja/commit/fd45… | x_refsource_MISC |
| https://vikunja.io/changelog/vikunja-v2.2.2-was-r… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| go-vikunja | vikunja |
Affected:
>= 0.18.0, < 2.2.1
|
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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