---
id: CVE-2026-84203
title: >-
  Memos versions 0.26.0 through 0.30.0 fail to revoke refresh tokens when a user
  changes their password, allowing attackers to maintain account access
summary: >-
  Memos versions 0.26.0 through 0.30.0 fail to revoke refresh tokens when a user
  changes their password, allowing attackers to maintain account access. An
  attacker with a stolen refresh token can call the RefreshToken RPC to obtain
  new acc…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-613
published: '2026-09-01'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:18:59.270'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84203'
references:
  - url: 'https://github.com/usememos/memos'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/usememos/memos/blob/v0.30.0/server/auth/authenticator.go
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/usememos/memos/blob/v0.30.0/server/router/api/v1/user_service.go
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/memos-0.26.0-through-0.30.0-insufficient-session-expiration-on-password-change
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00448
epssPercentile: 0.36199
ingestedAt: '2026-09-08T21:11:12.289Z'
---

## Overview

Memos versions 0.26.0 through 0.30.0 fail to revoke refresh tokens when a user changes their password, allowing attackers to maintain account access. An attacker with a stolen refresh token can call the RefreshToken RPC to obtain new access tokens and rotate the refresh token indefinitely, bypassing the password change security measure.

## Remediation

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