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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Peppermint-Lab peppermint unaffected
Version Status Constraints
0 affected ≤ 0.5.5

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Project Subscriptions

Vendors Products
Peppermint Subscribe
Peppermint Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Peppermint-Lab/peppermint cve-icon cve-icon
https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/controllers/auth.ts cve-icon cve-icon
https://github.com/Peppermint-Lab/peppermint/issues/529 cve-icon cve-icon
https://www.vulncheck.com/advisories/peppermint-through-0.5.5-authorization-bypass-on-the-user-logout-endpoint cve-icon cve-icon
History

Thu, 03 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Peppermint through 0.5.5 Authorization Bypass on the User Logout Endpoint
First Time appeared Peppermint
Peppermint peppermint
Weaknesses CWE-639
CPEs cpe:2.3:a:peppermint:peppermint:*:*:*:*:*:*:*:*
Vendors & Products Peppermint
Peppermint peppermint
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-03T18:54:25.208Z

Reserved: 2026-09-03T18:10:52.289Z

Link: CVE-2026-85392

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-03T19:17:30.970

Modified: 2026-09-03T19:17:30.970

Link: CVE-2026-85392

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses