CVE Watchtower ← Back to CVE ListCVE-2026-15617NVDVulnerability SummaryLogto performs principal lookup without normalizing email and identifier strings, enabling principal collision and unauthorized account access via case- or Unicode-different identities.Severity LevelUNKNOWNPublished DateJul 23, 2026Last ModifiedJul 23, 2026Exploitation StatusNo confirmed exploitation yetEPSS Score (30-Day)Data PendingRoot Weakness (CWE)N/AExternal Referenceshttps://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on-guard.ts#L23-L33