CVE-2026-91144 ZFile - Broken Access Control

ZFile <= 5.0.5 contains a broken access control caused by insufficient validation of file paths on the download endpoint, letting attackers with a share link download arbitrary files under the shared base directory, exploit requires attacker to have a valid share link.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.51% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, File System Read
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-639

Vendor fix

Update to the latest version beyond 5.0.5.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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