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Vulnerability record · CVE-2026-90928 · published 14 September 2026

CVE-2026-90928: Uncontrolled resource consumption vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.44% · top 64.6% CWE-400 · Uncontrolled resource consumption Awaiting Analysis
7.1CVSS 4.0 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
24 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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/security/advisories/GHSA-448h-jr2h-3vhp
https://www.vulncheck.com/advisories/file-browser-through-2.63.23-memory-exhaustion-via-subtitle-endpoint
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-448h-jr2h-3vhp

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Source: NIST National Vulnerability Database (record CVE-2026-90928), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.