CVE-2026-84203 PUBLISHED

Memos 0.26.0 through 0.30.0 Insufficient Session Expiration on Password Change

Assigner: VulnCheck
Reserved: 01.09.2026 Published: 01.09.2026 Updated: 01.09.2026

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 Vector: 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
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS Score: 8.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	usememos
Product	memos
Versions	Default: unaffected affected from 0.26.0 to 0.30.0 (incl.)

CVE-2026-84203 PUBLISHED

Memos 0.26.0 through 0.30.0 Insufficient Session Expiration on Password Change

Metrics

Product Status

Credits

References

Problem Types