github.com
https://github.com/go-vikunja/vikunja CVE-2026-33677
MEDIUM
Webhook BasicAuth Credentials Exposed to Read-Only Project Collaborators via API
Record summary
CVE-2026-33677 has a selected CVSS score of 6.5 (medium).
Description
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationPoC
AutomatableNo
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Mar 24, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
vikunjaBrowse go-vikunja / vikunja | CVE List | < 2.2.1 | affected |
code.vikunja.io/apiBrowse Go / code.vikunja.io/api | GitHub Advisory | Before 2.2.1 · Fixed in 2.2.1 | affected |
References
4github.comConfirmation
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-7c2g-p23p-4jg3 nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-33677 vikunja.io
https://vikunja.io/changelog/vikunja-v2.2.2-was-released