CVE-2026-82236: File Browser 2.63.6 through 2.63.23 Share Link Exposure via File Deletion

Severity: low (CVSS 3.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-28 · updated 2026-09-30
Weakness: CWE-459

Description

File Browser versions from 2.63.6 through 2.63.23 fail to clean up public share links when a privileged user deletes another user's shared file. Attackers can access the surviving share link to retrieve new unrelated content uploaded to the same path without authentication.

Affected products

filebrowser: from 2.63.6 through 2.63.23

References

https://github.com/filebrowser/filebrowser/commit/0231b7eb
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-r6pg-pg54-rcr5
https://www.vulncheck.com/advisories/file-browser-2.63.6-through-2.63.23-share-link-exposure-via-file-deletion
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-r6pg-pg54-rcr5

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