What is CVE-2026-55496?

CVE-2026-55496 is a medium-severity vulnerability in Cloudreve, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-07-31.

How severe is CVE-2026-55496?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Information disclosure in Cloudreve

CVE-2026-55496

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 en…

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Cloudreve — versions 4.17.0

Weakness classification (CWE)

CWE-200 — Information Disclosure
CWE-359 — Exposure of Private Personal Information to an Unauthorized Actor

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-55496?: CVE-2026-55496 is a medium-severity vulnerability in Cloudreve, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-07-31.
How severe is CVE-2026-55496?: Medium severity. CVSS v3 base score is 4.3 out of 10.