{"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"}},"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"}}]}}