CVE-2026-91144

HIGH 7.5

ZFile through 5.0.5 Share Entry Filter Bypass via Download Endpoint

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	zfile-dev
Product	zfile
Published	Sep 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

zfile-dev / zfile

0 ≤ 5.0.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/zfile-dev/zfile/issues/826 github.com: https://github.com/zfile-dev/zfile github.com: https://github.com/zfile-dev/zfile/blob/5.0.5/src/main/java/im/zhaojun/zfile/module/share/service/ShareLinkFileService.java vulncheck.com: https://www.vulncheck.com/advisories/zfile-through-5.0.5-share-entry-filter-bypass-via-download-endpoint

Credits

🔍 George Chen