{"apiVersion":"1.0","identifier":"CVE-2026-66002","description":"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.","publishedAt":"2026-08-20T19:16:58","lastModifiedAt":"2026-08-21T22:16:42","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66002","cvssScore":6.9,"cvssVector":"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","epssProbability":0.00468,"riskScore":0.72,"affectedProduct":"Frappe","affectedVersions":"<15.115.0, <16.27.0","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-66002","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-66002","en":"https://www.redsauce.net/en/cves/CVE-2026-66002","fr":"https://www.redsauce.net/fr/cves/CVE-2026-66002","pt":"https://www.redsauce.net/pt/cves/CVE-2026-66002","de":"https://www.redsauce.net/de/cves/CVE-2026-66002","sk":"https://www.redsauce.net/sk/cves/CVE-2026-66002","el":"https://www.redsauce.net/el/cves/CVE-2026-66002"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-66002"}}