What is CVE-2026-90928?

CVE-2026-90928 is a medium-severity vulnerability in Filebrowser, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-09-14.

How severe is CVE-2026-90928?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Filebrowser

CVE-2026-90928

File Browser through 2.63.23 contains a memory exhaustion vulnerability in the subtitle conversion endpoint that loads entire subtitle files into memory without size limits. Authenticated attackers with download permission can request conversion of large .srt, .ass, or .ssa files and exhaust server memory through concurrent requests, causing denial of service.

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Filebrowser

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-90928?: CVE-2026-90928 is a medium-severity vulnerability in Filebrowser, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-09-14.
How severe is CVE-2026-90928?: Medium severity. CVSS v3 base score is 6.5 out of 10.