What is CVE-2026-35604?

CVE-2026-35604 is a high-severity vulnerability in Filebrowser, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-04-07.

How severe is CVE-2026-35604?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Filebrowser

CVE-2026-35604

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, when an admin revokes a user's Share and Download permissions, existing share links created by that user remain fully accessible to unauthenticated users. The public share download handler does not re-check the share owner's current permissions. This vulnerability is fixed in 2.63.1.

Vulnerability class: Broken Access Control

EPSS: 0.003 (25.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Filebrowser — versions < 2.63.1

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-35604?: CVE-2026-35604 is a high-severity vulnerability in Filebrowser, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-04-07.
How severe is CVE-2026-35604?: High severity. CVSS v3 base score is 8.1 out of 10.