CVE-2026-55496

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Source
https://cve.org/CVERecord?id=CVE-2026-55496
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55496.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55496
Aliases
Downstream
Related
Published
2026-07-31T03:23:33Z
Modified
2026-10-21T02:58:38Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-200",
        "CWE-359"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55496.json"
}
References

Affected packages

Git / github.com/cloudreve/cloudreve

Affected ranges

Type
GIT
Repo
https://github.com/cloudreve/cloudreve
Events
Introduced
d4a145c3ac68f08b9071dec0f2ac025c6dc7362d
Fixed
7e1289d552794bdbeb551be78456115c87dcb3da
Fixed
d4a145c3ac68f08b9071dec0f2ac025c6dc7362d
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "4.17.0"
                },
                {
                    "last_affected":  "4.17.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandaloneSingleVersion"
        },
        {
            "range":  [
                {
                    "fixed":  "7e1289d552794bdbeb551be78456115c87dcb3da"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "4.17.0",
            "range":  [
                {
                    "fixed":  "d4a145c3ac68f08b9071dec0f2ac025c6dc7362d"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

4.*
4.17.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55496.json"