High
File Browser: Path Traversal in Public Share Links Exposes Files Outside Shared Directory
Type: advisorySources: OSV
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 version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories. This issue has been patched in version 2.61.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-28492
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 18:30 UTC · Revision 1
Source evidence
File Browser: Path Traversal in Public Share Links Exposes Files Outside Shared Directory
core-osv · Original sourcePublished 5 Mar 2026, 21:06 UTC
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 version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories. This issue has been patched in version 2.61.0.
osv:CVE-2026-28492
Complete source record
{
"id": "83a4f66cf17bfef88e9c94789a625cfc9afe0cc749665b0832d70e15c82ef75d",
"url": "https://osv.dev/vulnerability/CVE-2026-28492",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "File Browser: Path Traversal in Public Share Links Exposes Files Outside Shared Directory",
"summary": "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 version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories. This issue has been patched in version 2.61.0.",
"evidence": "osv:CVE-2026-28492",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-28492",
"aliases": [
"CVE-2026-28492",
"GHSA-mr74-928f-rw69",
"GO-2026-4585"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/filebrowser/filebrowser",
"type": "GIT",
"events": [
{
"introduced": "e706391934d79ceca7f639eccda96df4dec55f48"
},
{
"fixed": "148b3c59422401ff00f255ae3044282d7a42192b"
},
{
"fixed": "31194fb57a5b92e7155219d7ec7273028fcb2e83"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.61.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "31194fb57a5b92e7155219d7ec7273028fcb2e83"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "148b3c59422401ff00f255ae3044282d7a42192b"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v2.61.0"
}
]
}
}
],
"versions": [
"v2.60.0",
"v2.59.0",
"v2.58.0",
"v2.57.1",
"v2.57.0",
"v2.56.0",
"v2.55.0",
"v2.54.0",
"v2.53.1",
"v2.53.0",
"v2.52.0",
"v2.51.2",
"v2.51.1",
"v2.51.0",
"v2.50.0",
"v2.49.0",
"v2.48.2",
"v2.48.1",
"v2.48.0",
"v2.47.0",
"v2.46.1",
"v2.46.0",
"v2.45.3",
"v2.45.2",
"v2.45.1",
"v2.45.0",
"v2.44.2",
"v2.44.1",
"v2.44.0",
"v2.43.0",
"v2.42.5",
"v2.42.4",
"v2.42.3",
"v2.42.2",
"v2.42.1",
"v2.42.0",
"v2.41.0",
"v2.40.2",
"v2.40.1",
"v2.40.0",
"v2.39.0",
"v2.38.0",
"v2.37.0",
"v2.36.3",
"v2.36.2",
"v2.36.1",
"v2.36.0",
"v2.35.0",
"v2.34.2",
"v2.34.1",
"v2.34.0",
"v2.33.10",
"v2.33.9",
"v2.33.8",
"v2.33.7",
"v2.33.6",
"v2.33.5",
"v2.33.4",
"v2.33.3",
"v2.33.2",
"v2.33.1",
"v2.33.0",
"v2.32.3",
"v2.32.2",
"v2.32.1",
"v2.32.0",
"v2.31.2",
"v2.31.1",
"v2.31.0",
"v2.30.0",
"v2.29.0",
"v2.28.0",
"v2.27.0",
"v2.26.0",
"v2.25.0",
"v2.24.2",
"v2.24.1",
"v2.24.0",
"v2.23.0",
"v2.22.4",
"v2.22.3",
"v2.22.2",
"v2.22.1",
"v2.22.0",
"v2.21.1",
"v2.21.0",
"v2.20.1",
"v2.20.0",
"v2.19.0",
"v2.18.0",
"v2.17.2",
"v2.17.1",
"v2.17.0",
"v2.16.1",
"v2.16.0",
"v2.15.0",
"v2.14.1",
"v2.14.0",
"v2.13.0",
"v2.12.1",
"v2.12.0",
"v2.11.0",
"v2.10.0",
"v2.9.0",
"v2.8.0",
"v2.7.0",
"v2.6.2",
"v2.6.1",
"v2.6.0",
"v2.5.0",
"v2.4.0",
"v2.3.0",
"v2.2.0",
"v2.1.2",
"v2.1.1",
"v2.1.0",
"v2.0.16",
"v2.0.15",
"v2.0.14",
"v2.0.13",
"v2.0.12",
"v2.0.11",
"v2.0.10",
"v2.0.9",
"v2.0.8",
"v2.0.7",
"v2.0.6",
"v2.0.5",
"v2.0.4",
"v2.0.3",
"v2.0.2",
"v2.0.1",
"v2.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28492.json"
}
}
],
"modified": "2026-10-28T02:30:31.784024771Z",
"provider": "osv",
"references": [
"https://github.com/filebrowser/filebrowser/releases/tag/v2.61.0",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28492.json",
"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-mr74-928f-rw69",
"https://nvd.nist.gov/vuln/detail/CVE-2026-28492",
"https://github.com/filebrowser/filebrowser/commit/31194fb57a5b92e7155219d7ec7273028fcb2e83"
],
"provider_metadata": {
"cwe_ids": [
"CWE-200"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28492.json"
}
},
"related_cves": [
{
"value": "CVE-2026-28492",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 498462,
"published_at": "2026-03-05T21:06:21.185+00:00"
}