{"cve":"CVE-2026-25890","nvd":{"published":"2026-02-09T22:16:03.873","modified":"2026-06-17T10:25:23.263","status":"Analyzed","description":"File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to 2.57.1, an authenticated user can bypass the application's \"Disallow\" file path rules by modifying the request URL. By adding multiple slashes (e.g., //private/) to the path, the authorization check fails to match the rule, while the underlying filesystem resolves the path correctly, granting unauthorized access to restricted files. This vulnerability is fixed in 2.57.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-863","CWE-706"],"references":["https://github.com/filebrowser/filebrowser/commit/489af403a19057f6b6b4b1dc0e48cbb26a202ef9","https://github.com/filebrowser/filebrowser/releases/tag/v2.57.1","https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4mh3-h929-w968"],"products":["filebrowser:filebrowser"],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2026-25890","score":0.00508,"percentile":0.43412,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4mh3-h929-w968","url":"https://osv.dev/vulnerability/GHSA-4mh3-h929-w968","summary":"File Browser has a Path-Based Access Control Bypass via Multiple Leading Slashes in URL","modified":"2026-09-10T03:50:34.233117663Z","packages":[{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","ranges":["<2.57.1"],"fixed":["2.57.1"]}]},{"id":"GO-2026-4474","url":"https://osv.dev/vulnerability/GO-2026-4474","summary":"File Browser has a Path-Based Access Control Bypass via Multiple Leading Slashes in URL in github.com/filebrowser/filebrowser","modified":"2026-02-19T20:41:08.672525Z","packages":[{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser","purl":"pkg:golang/github.com/filebrowser/filebrowser","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","ranges":["<2.57.1"],"fixed":["2.57.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}