# CVE-2026-91144

## Summary

- **CVE ID:** CVE-2026-91144
- **Severity:** HIGH
- **CVSS Score:** 8.7 (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)
- **CWE:** CWE-639
- **Published:** Sep 14, 2026
- **Last Modified:** 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.

## Affected Products

- zfile-dev — zfile (0)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.37%
- **EPSS Percentile:** 30.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._