What is CVE-2026-82235?

CVE-2026-82235 is a medium-severity vulnerability in Filebrowser, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2026-08-28.

How severe is CVE-2026-82235?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Resource exhaustion in Filebrowser

CVE-2026-82235

filebrowser through 2.63.23 fails to validate named pipes in directory archive and public download handlers, allowing attackers to trigger blocking open syscalls. Authenticated users or anonymous visitors with public share links can repeatedly request archives containing named pipes to pin server goroutines and exhaust connection resources.

Vulnerability class: DoS (Denial of Service)

Published 2026-08-28 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.2th percentile), scored 2026-10-13.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001

Affected products

Filebrowser

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

github.com/filebrowser/filebrowser/security/advisories/GHSA-8q5j-8wcr-8v2v (vendor-advisory)
github.com/filebrowser/filebrowser/commit/586d198d (patch)
www.vulncheck.com/advisories/filebrowser-through-2.63.23-denial-of-service-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-82235?: CVE-2026-82235 is a medium-severity vulnerability in Filebrowser, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2026-08-28.
How severe is CVE-2026-82235?: Medium severity. CVSS v3 base score is 5.9 out of 10.