CVE-2026-33677: Vikunja

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `GET /api/v1/projects/:project/webhooks` endpoint returns webhook BasicAuth credentials (`basic_auth_user` and `basic_auth_password`) in plaintext to any user with read access to the project. While the existing code correctly masks the HMAC `secret` field, the BasicAuth fields added in a later migration were not given the same treatment. This allows read-only collaborators to steal credentials intended for authenticating against external webhook receivers. Version 2.2.1 patches the issue.

Affected products

• Vikunja Vikunja: before 2.2.1 (fixed in 2.2.1)

Published 2026-03-24. Last modified 2026-06-17.