CVE-2026-84203

Description

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.

References

• 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
• https://www.vulncheck.com/advisories/memos-0.26.0-through-0.30.0-insufficient-session-expiration-on-password-change