VulnerabilityDeferred
CVE-2026-84203
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.
HIGH 8.6EPSS 0.26%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 8.6 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.26% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-613
- Source
- disclosure@vulncheck.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.