CVE-2026-35606
published 2026-04-07CVE-2026-35606: 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…
PriorityP347high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.27%
19.1th percentile
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 resourceGetHandler in http/resource.go returns full text file content without checking the Perm.Download permission flag. All three other content-serving endpoints (/api/raw, /api/preview, /api/subtitle) correctly verify this permission before serving content. A user with download: false can read any text file within their scope through two bypass paths. This vulnerability is fixed in 2.63.1.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| filebrowser | filebrowser | < 2.63.1 | 2.63.1 |
| filebrowser | filebrowser | <= 2.63.0 | — |
| github.com | filebrowser_filebrowser_v2 | >= 0 < 2.63.1 | 2.63.1 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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OSV
File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check
osv·2026-04-08
CVE-2026-35606 [MEDIUM] File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check
File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check
## Summary
The `resourceGetHandler` in `http/resource.go` returns full text file content without checking the `Perm.Download` permission flag. All three other content-serving endpoints (`/api/raw`, `/api/preview`, `/api/subtitle`) correctly verify this permission before serving content. A user with `download: false` can read any text file within their scope through two bypass paths.
Confirmed on v2.62.2 (commit 860c19d).
## Root Cause
`http/resource.go` line 26-33 hardcodes `Content: true` in the FileOptions without checking download permission:
file, err := files.NewFileInfo(&files.FileOptions{
...
Content: true, // Always loads text content, no permission check
})
Lines 44-63: the `X
GHSA
File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check
ghsa·2026-04-08
CVE-2026-35606 [MEDIUM] CWE-862 File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check
File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check
## Summary
The `resourceGetHandler` in `http/resource.go` returns full text file content without checking the `Perm.Download` permission flag. All three other content-serving endpoints (`/api/raw`, `/api/preview`, `/api/subtitle`) correctly verify this permission before serving content. A user with `download: false` can read any text file within their scope through two bypass paths.
Confirmed on v2.62.2 (commit 860c19d).
## Root Cause
`http/resource.go` line 26-33 hardcodes `Content: true` in the FileOptions without checking download permission:
file, err := files.NewFileInfo(&files.FileOptions{
...
Content: true, // Always loads text content, no permission check
})
Lines 44-63: the `X
No detection rules found.
No public exploits indexed.
2026-04-07
Published