CVE-2026-90928 File Browser through 2.63.23 Memory Exhaustion via subtitle endpoint
Authenticated attackers can cause denial of service by requesting conversion of large subtitle files, exhausting server memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-90928?
CVE-2026-90928 is a high-severity denial of service vulnerability in filebrowser, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-400
Which versions are affected by CVE-2026-90928?
How do I fix CVE-2026-90928?
No fix has been published for CVE-2026-90928 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-90928 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90928 exists.
Sources
Also known as GHSA-2944-mcc5-rgm4, GHSA-448h-jr2h-3vhp.