CVE-2026-91144
ZFile through 5.0.5 Share Entry Filter Bypass via Download Endpoint
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 14, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 14, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
zfilezfile-dev |
|
References
- GitHub Issue #826issue-tracking
- https://github.com/zfile-dev/zfileproduct
- ShareLinkFileService.java at 5.0.5technical-description
- VulnCheck Advisory: ZFile through 5.0.5 Share Entry Filter Bypass via Download Endpointthird-party-advisory
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