{"id":"CVE-2026-55496","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-55496","generatedAt":"2026-10-28T07:25:53.442Z","title":"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.","description":"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.","published":"2026-07-31T04:17:23.000Z","lastModified":"2026-09-08T20:51:43.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-200","CWE-359"],"affected":[],"epss":{"score":0.00361,"percentile":0.29689,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/cloudreve/cloudreve/commit/7e1289d552794bdbeb551be78456115c87dcb3da","source":"security-advisories@github.com"},{"url":"https://github.com/cloudreve/cloudreve/releases/tag/4.17.0","source":"security-advisories@github.com"},{"url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv","source":"security-advisories@github.com"},{"url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-8r7f-r8hj-r3rv","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55496","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}