CVE-2026-61874 filebrowser before 2.63.17 Stale Public Share via Trailing-Slash Delete
Authenticated users can bypass share deletion checks to expose new directory contents via stale public share URLs.
- 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-2026-61874?
CVE-2026-61874 is a low-severity missing authorization vulnerability in filebrowser, published on 12 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
filebrowser versions before 2.63.17 fail to normalize paths before querying the share index in DeleteWithPathPrefix, allowing authenticated users to leave stale public shares behind. Attackers can delete a shared directory using a trailing-slash path, then recreate the same directory to expose new contents through the dormant public share URL.
Weakness: CWE-863
Which versions are affected by CVE-2026-61874?
How do I fix CVE-2026-61874?
No fix has been published for CVE-2026-61874 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-61874 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-61874 exists.
Sources
Also known as GHSA-7cj6-cw3p-4jpw.