{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-66002", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-23T18:54:15.833Z", "datePublished": "2026-08-20T18:29:40.872Z", "dateUpdated": "2026-08-21T21:46:12.905Z"}, "containers": {"cna": {"title": "Frappe: User Enumeration via PDDR", "problemTypes": [{"descriptions": [{"cweId": "CWE-204", "lang": "en", "description": "CWE-204: Observable Response Discrepancy", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/frappe/frappe/security/advisories/GHSA-c2xv-c53h-qvr5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/frappe/frappe/security/advisories/GHSA-c2xv-c53h-qvr5"}, {"name": "https://github.com/frappe/frappe/pull/40787", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/pull/40787"}, {"name": "https://github.com/frappe/frappe/pull/40814", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/pull/40814"}, {"name": "https://github.com/frappe/frappe/pull/40815", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/pull/40815"}, {"name": "https://github.com/frappe/frappe/commit/30fe0b4118ff94c95c239dce4bc74ec4ca10a827", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/commit/30fe0b4118ff94c95c239dce4bc74ec4ca10a827"}, {"name": "https://github.com/frappe/frappe/commit/47a396ec59f5362029feb349eb2b9d10a21afcf8", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/commit/47a396ec59f5362029feb349eb2b9d10a21afcf8"}, {"name": "https://github.com/frappe/frappe/commit/4b32a4e0072e61ce0abcb0d09cfd1f14724fe896", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/commit/4b32a4e0072e61ce0abcb0d09cfd1f14724fe896"}, {"name": "https://github.com/frappe/frappe/releases/tag/v15.115.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/releases/tag/v15.115.0"}, {"name": "https://github.com/frappe/frappe/releases/tag/v16.27.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/frappe/frappe/releases/tag/v16.27.0"}], "affected": [{"vendor": "frappe", "product": "frappe", "versions": [{"version": "< 15.115.0", "status": "affected"}, {"version": ">= 16.0.0-beta.1, < 16.27.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-20T18:29:40.872Z"}, "descriptions": [{"lang": "en", "value": "Frappe is a full-stack web application framework. Prior to 15.115.0 and 16.27.0, the public request-data web form and PersonalDataDownloadRequest class in frappe/website/doctype/personal_data_download_request/personal_data_download_request.py return distinguishable response shapes for registered and unregistered email addresses, including the user_name field and persistence behavior. A remote attacker can compare the responses to enumerate registered users. This issue is fixed in versions 15.115.0 and 16.27.0."}], "source": {"advisory": "GHSA-c2xv-c53h-qvr5", "discovery": "UNKNOWN"}, "x_gcve": [{"vulnId": "CVE-2026-66002", "recordType": "advisory"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-21T21:09:35.845729Z", "id": "CVE-2026-66002", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-21T21:46:12.905Z"}}]}, "vulnerability-lookup:meta": {"epss": {"cve": "CVE-2026-66002", "date": "2026-11-08", "epss": "0.00823", "percentile": "0.57589"}, "nvd": "{\"cve\":{\"id\":\"CVE-2026-66002\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-08-20T19:16:58.187\",\"lastModified\":\"2026-10-26T10:10:00.140\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Frappe is a full-stack web application framework. Prior to 15.115.0 and 16.27.0, the public request-data web form and PersonalDataDownloadRequest class in frappe/website/doctype/personal_data_download_request/personal_data_download_request.py return distinguishable response shapes for registered and unregistered email addresses, including the user_name field and persistence behavior. A remote attacker can compare the responses to enumerate registered users. This issue is fixed in versions 15.115.0 and 16.27.0.\"},{\"lang\":\"es\",\"value\":\"Frappe es un framework de aplicaci\u00f3n web full-stack. Antes de las versiones 15.115.0 y 16.27.0, el formulario web p\u00fablico de solicitud de datos y la clase PersonalDataDownloadRequest en frappe/website/doctype/personal_data_download_request/personal_data_download_request.py devuelven formas de respuesta distinguibles para direcciones de correo electr\u00f3nico registradas y no registradas, incluyendo el campo user_name y el comportamiento de persistencia. Un atacante remoto puede comparar las respuestas para enumerar usuarios registrados. Este problema est\u00e1 solucionado en las versiones 15.115.0 y 16.27.0.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"frappe\",\"product\":\"frappe\",\"versions\":[{\"version\":\"< 15.115.0\",\"status\":\"affected\"},{\"version\":\">= 16.0.0-beta.1, < 16.27.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":6.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-21T21:09:35.845729Z\",\"id\":\"CVE-2026-66002\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-204\"}]}],\"references\":[{\"url\":\"https://github.com/frappe/frappe/commit/30fe0b4118ff94c95c239dce4bc74ec4ca10a827\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/commit/47a396ec59f5362029feb349eb2b9d10a21afcf8\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/commit/4b32a4e0072e61ce0abcb0d09cfd1f14724fe896\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/pull/40787\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/pull/40814\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/pull/40815\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/releases/tag/v15.115.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/releases/tag/v16.27.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/frappe/frappe/security/advisories/GHSA-c2xv-c53h-qvr5\",\"source\":\"security-advisories@github.com\"}]}}"}}