Memos 0.26.0 through 0.30.0 Insufficient Session Expiration on Password Change

{
  "id": "3e5caf51fcde471043df807a6b1df1a4a3b53e9bfb2aa59b873a66d06f0bf4b4",
  "url": "https://osv.dev/vulnerability/CVE-2026-84203",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Memos 0.26.0 through 0.30.0 Insufficient Session Expiration on Password Change",
    "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 access tokens and rotate the refresh token indefinitely, bypassing the password change security measure.",
    "evidence": "osv:CVE-2026-84203",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-84203",
      "aliases": [
        "CVE-2026-84203"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/usememos/memos",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1696c6c41428f98c06fcaf8838d43bcbf784c413"
                },
                {
                  "last_affected": "2036c1ffc1b0a1e1fa6a473738c2a5ef520df67f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.26.0"
                      },
                      {
                        "last_affected": "0.30.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.26.0"
                      },
                      {
                        "last_affected": "0.30.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.30.0",
            "v0.30.0-rc.2",
            "v0.30.0-rc.1",
            "v0.29.1",
            "v0.29.0",
            "v0.28.0",
            "v0.27.1",
            "v0.27.0",
            "v0.27.0-rc.2",
            "v0.27.0-rc.1",
            "v0.26.2",
            "v0.26.1",
            "v0.26.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84203.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.279802760Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84203.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-84203",
        "https://www.vulncheck.com/advisories/memos-0.26.0-through-0.30.0-insufficient-session-expiration-on-password-change",
        "https://github.com/usememos/memos",
        "https://github.com/usememos/memos/blob/v0.30.0/server/auth/authenticator.go",
        "https://github.com/usememos/memos/blob/v0.30.0/server/router/api/v1/user_service.go"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-613"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84203.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-84203",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 513317,
  "published_at": "2026-09-01T15:18:58.062+00:00"
}