What is CVE-2026-91144?

CVE-2026-91144 is a high-severity vulnerability in Zfile-Dev Zfile, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-09-14.

How severe is CVE-2026-91144?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Zfile-Dev Zfile

CVE-2026-91144

ZFile through 5.0.5 fails to validate requested file paths against a share link's allowed entries on the download endpoint. Attackers holding a share link can supply arbitrary file paths as query parameters to download any file under the shared base directory, bypassing the intended access restrictions.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Zfile-dev Zfile

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-91144?: CVE-2026-91144 is a high-severity vulnerability in Zfile-Dev Zfile, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2026-09-14.
How severe is CVE-2026-91144?: High severity. CVSS v3 base score is 7.5 out of 10.