CVE-2026-51584
Critical · 9.8CVSS
9.8
EPSS
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Published
Aug 11, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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