{"schemaVersion":3,"id":"CVE-2026-59218","aliases":["GHSA-7rw5-9f7q-xj36","PYSEC-2026-3594"],"status":"published","duplicateOf":null,"title":null,"description":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the /api/v1/auths/signin endpoint looked users up by email and only ran bcrypt password verification when a credential existed, making registered-account attempts measurably slower than missing-email attempts and allowing unauthenticated account enumeration. 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