{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15617", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-07-13T16:14:46.769Z", "datePublished": "2026-07-23T15:41:29.123Z", "dateUpdated": "2026-07-23T15:41:29.123Z"}, "containers": {"cna": {"title": "Principal/domain lookup without case normalization", "descriptions": [{"lang": "en", "value": "Logto performs principal lookup without normalizing email and identifier strings, enabling principal collision and unauthorized account access via case- or Unicode-different identities."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Logto", "product": "Logto", "versions": [{"status": "affected", "version": "1.10.1", "lessThanOrEqual": "1.37.1", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-178 Improper Handling of Case Sensitivity"}]}], "references": [{"url": "https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on-guard.ts#L23-L33"}], "x_generator": {"engine": "VINCE 3.0.43", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-15617"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-07-23T15:41:29.123Z"}}}}

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