CVE-2026-123517
Vikunja before 2.7.1 Information Disclosure via Team Self-Removal Endpoint
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-204 |
| Vendor | go-vikunja |
| Product | vikunja |
| Published | Nov 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
go-vikunja / vikunja
0 < 2.7.1