CVE-2026-35604 json
File Browser share links remain accessible after Share/Download permissions are revoked
published 2026-04-07 7 mo ago modified 2026-06-25 4 mo ago also GHSA-v9w4-gm2x-6rvf , GO-2026-5659 , EUVD-2026-19776
- cvss
- 8.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
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, when an admin revokes a user's Share and Download permissions, existing share links created by that user remain fully accessible to unauthenticated users. The public share download handler does not re-check the share owner's current permissions. This vulnerability is fixed in 2.63.1.
Patch / fix
- go github.com/filebrowser/filebrowser/v2 2.63.1
- filebrowser filebrowser 2.63.1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
- github.com/filebrowser/filebrowser#5888 pull request
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/filebrowser/filebrowser/security/advisories/GHSA-v9w4-gm2x-6rvf referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.2 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.2 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/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 |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/filebrowser/filebrowser/v2 | <2.63.1 |
2.63.1 |
| go | github.com/filebrowser/filebrowser | all versions |
no fix listed |
Affected products
- filebrowser filebrowser
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/filebrowser/filebrowser/pull/5888
web, patch
-
github.com
/filebrowser/filebrowser/security/advisories/GHSA-v9w4-gm2x-6rvf
web, exploit, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-35604
advisory
-
github.com
/filebrowser/filebrowser
package
Sources
- CVE List CVE-2026-35604
- GitHub Advisory GHSA-v9w4-gm2x-6rvf
- NVD CVE-2026-35604
- OSV GO-2026-5659
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.