---
id: CVE-2026-85392
title: >-
  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
summary: >-
  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
  f…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-639
published: '2026-09-03'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:20:21.673'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85392'
references:
  - url: 'https://github.com/Peppermint-Lab/peppermint'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/auth.ts
    label: disclosure@vulncheck.com
  - url: 'https://github.com/Peppermint-Lab/peppermint/issues/529'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/peppermint-through-0.5.5-authorization-bypass-on-the-user-logout-endpoint
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00455
epssPercentile: 0.36757
ingestedAt: '2026-09-09T20:21:14.801Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.