CVE-2026-85392
CVE-2026-85392
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (38.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Weakness classification (CWE)
References
- github.com/Peppermint-Lab/peppermint (product)
- github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/auth.ts (technical-description)
- github.com/Peppermint-Lab/peppermint/issues/529 (issue-tracking)
- www.vulncheck.com/advisories/peppermint-through-0.5.5-authorization-bypass-on-t… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-85392?
- CVE-2026-85392 is a medium-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-03.
- How severe is CVE-2026-85392?
- Medium severity. CVSS v3 base score is 4.3 out of 10.