CVE-2026-51584

CriticalCVSS 9.8/10Last modified Aug 31, 2026

Description

An issue in usememos v0.27.1 allows a remote attacker to achieve account takeover via the ssoCredentials branch of the SignIn handler in server/router/api/v1/auth_service.go, because SSO identity is matched only on an attacker-controllable identifier without binding to the IdP's stable subject claim.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 11, 2026
Last modified
Aug 31, 2026
NVD status
Deferred

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CVE-2026-51584: Critical severity, CVSS 9.8 | Vulnix