File Browser: Cross-user unauthorized share-link deletion via unbounded prefix match in DeleteWithPathPrefix
Published Jun 25, 2026
7.2
HIGHCVSS 4.0
EPSS 0.45%
Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, a low-privileged authenticated user of filebrowser (with create + delete permissions in their own isolated scope) can silently destroy share-link records belonging to any other user — including the administrator — by performing a legitimate DELETE on a file in their own directory whose logical path happens to be a byte-prefix of another user's stored share.Link.Path. The file contents of the victim are not exposed, but the victim's share links are irrevocably wiped. This vulnerability is fixed in 2.63.6.
Affected products
-
- Version < 2.63.6StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Filebrowser | Filebrowser | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
github.com/filebrowser/filebrowser
Go
Introduced 0 Fixed not fixedgithub.com/filebrowser/filebrowser/v2
Go
Introduced 0 Fixed 2.63.6
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/filebrowser/filebrowser | 0 | not fixed |
| Go | github.com/filebrowser/filebrowser/v2 | 0 | 2.63.6 |
Remediation
No remediation recorded yet.
References (6)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39505 Advisory
- https://github.com/advisories/GHSA-5ww9-jg6q-38r7 Advisory
- https://github.com/filebrowser/filebrowser/commit/0231b7ebdfbe77a6c54027d30c4856c3fd81ee4d x_refsource_MISC
- https://github.com/filebrowser/filebrowser/releases/tag/v2.63.6 x_refsource_MISC
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5ww9-jg6q-38r7 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-54097
Change history (0)
No recorded changes yet.