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Vulnerability record · CVE-2026-82235 · published 28 August 2026

CVE-2026-82235: Uncontrolled resource consumption vulnerability

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.

8.2 CVSS 4.0 High EPSS 0.52% · top 58.5% CWE-400 · Uncontrolled resource consumption Awaiting Analysis
8.2CVSS 4.0 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
24 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/filebrowser/filebrowser/commit/586d198d
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8q5j-8wcr-8v2v
https://www.vulncheck.com/advisories/filebrowser-through-2.63.23-denial-of-service-via-named-pipes

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Source: NIST National Vulnerability Database (record CVE-2026-82235), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.