What is CVE-2026-34528?

CVE-2026-34528 is a high-severity vulnerability in Filebrowser, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-04-01.

How severe is CVE-2026-34528?

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

Privilege escalation in Filebrowser

CVE-2026-34528

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the signupHandler in File Browser applies default user permissions via d.sett…

Vulnerability class: Privilege Escalation

EPSS: 0.001 (24.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Filebrowser — versions < 2.62.2

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-x8jc-jvqm-pm3f (x_refsource_CONFIRM)
https://github.com/filebrowser/filebrowser/releases/tag/v2.62.2 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34528?: CVE-2026-34528 is a high-severity vulnerability in Filebrowser, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-04-01.
How severe is CVE-2026-34528?: High severity. CVSS v3 base score is 8.1 out of 10.