What is CVE-2026-44542?

CVE-2026-44542 is a critical-severity vulnerability in Gtsteffaniak Filebrowser, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-05-14.

How severe is CVE-2026-44542?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Path Traversal in Gtsteffaniak Filebrowser

CVE-2026-44542

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-stable and 1.3.9-beta, attacker-controlled path input is joined with a trusted base path prior to sanitization, allowing traversal sequences (e.g., ../) to…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.010 (76.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Gtsteffaniak Filebrowser — versions < 1.3.1-stable, < 1.3.9-beta
Gtsteffaniak Filebrowser_quantum

Weakness classification (CWE)

CWE-22 — Path Traversal

References

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

Frequently asked questions

What is CVE-2026-44542?: CVE-2026-44542 is a critical-severity vulnerability in Gtsteffaniak Filebrowser, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-05-14.
How severe is CVE-2026-44542?: Critical severity. CVSS v3 base score is 9.1 out of 10.