CVE-2026-123517

Vikunja before 2.7.1 contains an information disclosure vulnerability that allows authenticated users to determine whether private teams exist by calling the team member self-removal endpoint. Attackers can send DELETE requests to /teams/{id}/members/{own username} for arbitrary team ids and use the distinguishable responses to learn if a team exists, is SSO-managed, or has a single member.

Referanslar

• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-v3r6-33v3-79c2
• https://www.vulncheck.com/advisories/vikunja-before-2.7.1-information-disclosure-via-team-self-removal-endpoint