CVE-2026-54091

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, File Browser's public share handlers rebase the share owner's filesystem root to the shared directory and then evaluate descendant paths against the owner's global and per-user rules using the rebased relative path instead of the original path relative to the owner's scope. As a result, an attacker who knows a public directory share URL can access files and subdirectories that the owner explicitly blocked with rules, as long as those blocked paths are located underneath the shared directory. In the simplest case this is an unauthenticated information disclosure through `GET /api/public/share/*` and `GET /api/public/dl/*`. This vulnerability is fixed in 2.63.6.

• CWE-863

• https://github.com/filebrowser/filebrowser/commit/e07c59df0b850f5924d5b1683e8609661ddcf534
• https://github.com/filebrowser/filebrowser/releases/tag/v2.63.6
• https://github.com/filebrowser/filebrowser/security/advisories/GHSA-j9jx-hp4c-ghhh

Published

Jun 25, 2026

Last Modified

Jun 26, 2026

Status

Deferred

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-54081veraPDF PDF parser is a PDF parser for veraPDF. Prior to 1.3…6.9
• CVE-2026-54082veraPDF validation model is an implementation of the veraPDF…6.5
• CVE-2026-54088File Browser is a file managing interface for uploading, del…9.3
• CVE-2026-54089File Browser is a file managing interface for uploading, del…9.1
• CVE-2026-5409Monero protocol dissector crash in Wireshark 4.6.0 to 4.6.4 …5.5
• CVE-2026-54090File Browser is a file managing interface for uploading, del…8.7
• CVE-2026-54092File Browser is a file managing interface for uploading, del…6.5
• CVE-2026-54093File Browser is a file managing interface for uploading, del…6.8
• CVE-2026-54094File Browser is a file managing interface for uploading, del…7.5
• CVE-2026-54095Rejected reason: CVE ** REJECT ** DO NOT USE THIS CANDIDATE …
• CVE-2026-54096File Browser is a file managing interface for uploading, del…8.4
• CVE-2026-54097File Browser is a file managing interface for uploading, del…7.2