{"id":"CVE-2026-55496","summary":"Cloudreve: Inactive/banned account emails leaked via GET /api/v4/user/search because SearchActive() omits the active-status predicate","details":"Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, GET /api/v4/user/search calls SearchActive without adding a StatusActive predicate and serializes matches at RedactLevelUser, allowing any logged-in user to enumerate email addresses and profile metadata for inactive or banned accounts. The service calls userClient.SearchActive, but despite its name that method filters only by email/nickname keyword and never adds a StatusActive predicate — while the sibling lookups GetActiveByID and GetActiveByDavAccount, defined a few lines above it, do. Search hits are serialized at RedactLevelUser, which includes the email address. This issue is fixed in version 4.17.0.","aliases":["GHSA-8r7f-r8hj-r3rv"],"modified":"2026-08-02T03:31:49.035357875Z","published":"2026-07-31T03:23:33.099Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55496.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-200","CWE-359"]},"references":[{"type":"WEB","url":"https://github.com/cloudreve/cloudreve/releases/tag/4.17.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55496.json"},{"type":"ADVISORY","url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55496"},{"type":"FIX","url":"https://github.com/cloudreve/cloudreve/commit/7e1289d552794bdbeb551be78456115c87dcb3da"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cloudreve/cloudreve","events":[{"introduced":"d4a145c3ac68f08b9071dec0f2ac025c6dc7362d"},{"fixed":"7e1289d552794bdbeb551be78456115c87dcb3da"},{"fixed":"d4a145c3ac68f08b9071dec0f2ac025c6dc7362d"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"4.17.0"},{"last_affected":"4.17.0"}]}}],"versions":["4.17.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55496.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}