CVE-2026-55370

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{"affected": [{"affectedData": [{"product": "logto", "vendor": "logto-io", "versions": [{"status": "affected", "version": "< 1.41.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's existing TOTP verification accepted a successfully used TOTP code again while the code remained inside the RFC 6238 acceptance window because the verifier used otplib's stateless check with window = 1 and did not persist or compare the accepted TOTP time-step counter. An attacker who has the victim's first factor and captures a live TOTP value can replay that value to satisfy MFA during the same acceptance window. This issue is fixed in version 1.41.0."}, {"lang": "es", "value": "Logto es la infraestructura de autenticaci\u00f3n moderna y de c\u00f3digo abierto para aplicaciones SaaS y de IA. Antes de la versi\u00f3n 1.41.0, la verificaci\u00f3n TOTP existente de Logto aceptaba un c\u00f3digo TOTP utilizado con \u00e9xito de nuevo mientras el c\u00f3digo permanec\u00eda dentro de la ventana de aceptaci\u00f3n de RFC 6238 porque el verificador utilizaba la comprobaci\u00f3n sin estado de otplib con window = 1 y no persist\u00eda ni comparaba el contador de pasos de tiempo TOTP aceptado. Un atacante que tiene el primer factor de la v\u00edctima y captura un valor TOTP en vivo puede reproducir ese valor para satisfacer la MFA durante la misma ventana de aceptaci\u00f3n. Este problema se solucion\u00f3 en la versi\u00f3n 1.41.0."}], "id": "CVE-2026-55370", "lastModified": "2026-10-25T15:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55370", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-10T20:14:33.407390Z", "version": "2.0.3"}}]}, "published": "2026-07-10T20:16:46.333", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/logto-io/logto/commit/9118867f6cbadc7291cf913beb4fede91ed5d374"}, {"source": "security-advisories@github.com", "url": "https://github.com/logto-io/logto/pull/9109"}, {"source": "security-advisories@github.com", "url": "https://github.com/logto-io/logto/releases/tag/v1.41.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/logto-io/logto/security/advisories/GHSA-6wj7-c66m-6c82"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-294"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.41.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "logto", "source": "cna", "vendor": "logto-io"}, "product": "logto", "vendor": "logto-io"}], "created": "2026-07-11T10:30:05.155579+00:00", "updated": "2026-08-04T07:45:05.835655+00:00", "vendors": ["logto-io", "logto-io$PRODUCT$logto"]}