{"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":0.00255,"epssPercentile":0.17466,"ingestedAt":"2026-09-08T21:11:12.289Z","slug":"CVE-2026-84203","body":"## Overview\n\nMemos 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}