CVE-2026-85392
Peppermint through 0.5.5 Authorization Bypass on the User Logout Endpoint
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
Peppermint through 0.5.5 contains an authorization bypass vulnerability in the GET /api/v1/auth/user/:id/logout endpoint that allows authenticated attackers to delete sessions for any user by supplying arbitrary user IDs. Attackers can forcibly log out any user including administrators by calling the logout handler with another user's ID, since the endpoint performs no authorization checks to verify the caller owns the target account.
| CWE | CWE-639 |
| Vendor | peppermint-lab |
| Product | peppermint |
| Published | Sep 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
Peppermint-Lab / peppermint
0 ≤ 0.5.5
References
github.com: https://github.com/Peppermint-Lab/peppermint/issues/529 github.com: https://github.com/Peppermint-Lab/peppermint github.com: https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/auth.ts vulncheck.com: https://www.vulncheck.com/advisories/peppermint-through-0.5.5-authorization-bypass-on-the-user-logout-endpoint
Credits
George Chen