Medium
File Browser has an access rule bypass via HasPrefix without trailing separator in path matching
Type: advisorySources: OSV
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the Matches() function in rules/rules.go uses strings.HasPrefix() without a trailing directory separator when matching paths against access rules. A rule for /uploads also matches /uploads_backup/, granting or denying access to unintended directories. This vulnerability is fixed in 2.63.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-35605
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 23:53 UTC · Revision 1
Source evidence
File Browser has an access rule bypass via HasPrefix without trailing separator in path matching
core-osv · Original sourcePublished 7 Apr 2026, 16:24 UTC
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the Matches() function in rules/rules.go uses strings.HasPrefix() without a trailing directory separator when matching paths against access rules. A rule for /uploads also matches /uploads_backup/, granting or denying access to unintended directories. This vulnerability is fixed in 2.63.1.
osv:CVE-2026-35605
Complete source record
{
"id": "79fd7d6f3c6fe13087d8ddec2337bceaffbf064027cbefcb22cde0022eab8d83",
"url": "https://osv.dev/vulnerability/CVE-2026-35605",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "File Browser has an access rule bypass via HasPrefix without trailing separator in path matching",
"summary": "File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the Matches() function in rules/rules.go uses strings.HasPrefix() without a trailing directory separator when matching paths against access rules. A rule for /uploads also matches /uploads_backup/, granting or denying access to unintended directories. This vulnerability is fixed in 2.63.1.",
"evidence": "osv:CVE-2026-35605",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-35605",
"aliases": [
"CVE-2026-35605",
"GHSA-5q48-q4fm-g3m6",
"GO-2026-5150"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/filebrowser/filebrowser",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "29c73eaca6a7b91f0de3c73536a0d0a21eeda03e"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.63.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"cpe": "cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.63.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-35605.json"
}
}
],
"modified": "2026-10-28T02:30:24.622249009Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35605.json",
"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5q48-q4fm-g3m6",
"https://nvd.nist.gov/vuln/detail/CVE-2026-35605",
"https://github.com/filebrowser/filebrowser/pull/5889"
],
"provider_metadata": {
"cwe_ids": [
"CWE-22"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35605.json"
}
},
"related_cves": [
{
"value": "CVE-2026-35605",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 490978,
"published_at": "2026-04-07T16:24:52.307+00:00"
}